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单选题
Tensile stress is a result of two forces acting in（）.
A
opposite directions on the same line，tending to pull the material apart
B
opposite directions on the same line，tending to compress the object
C
opposite directions along parallel lines
D
the same direction along parallel lines
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Which of the following is true according to the first two paragraphs?A．Women are biologically more vulnerable to stress.B．Women are still suffering much stress caused by men.C．Women are more experienced than men in coping with stress.D．Men and women show different inclinations when faced with stress.
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When defining a function activity, what is true about the Result Type?() (Choose two.)
A. Result Type is optional.B. Result Type is mandatory.C. Result Type can be changed after it is assigned to the function activity.D. Result Type should belong to the same item type as the function activity
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Sometimes it is desirable to connect a member both by riveting and welding. Which statement is TRUE concerning this procedure?A.Tearing through the member is more likely in this type connectionB.The weld may be broken by the stresses caused by rivetingC.The weld increases the tensile stress on the rivet headsD.The welding must be completed before the riveting commences
考题
Tensile stress is a result of two forces acting in ______.A.opposite directions on the same line，tending to pull the material apartB.opposite directions on the same line，tending to compress the objectC.opposite directions along parallel linesD.the same direction along parallel lines
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With no environmental forces acting on the vessel，the center of gravity of an inclined vessel is vertically aligned with the ______．A.longitudinal centerlineB.center of flotationC.original vertical centerlineD.metacenter
考题
One function of a bulwark is to ______．A.Help keep the deck dryB.Prevent stress concentrations on the stringer plateC.Protect against twisting forces exerted on the frame of the vesselD.Reinforce the side stringers
考题
Your vessel has a midships engine room and the cargo is concentrated in the end holds．The vessel is ______．A.sagging with tensile stress on main deckB.sagging with compressive stress on main deckC.hogging with tensile stress on main deckD.hogging with compressive stress on main deck
考题
Stress makes a person want to stop whatever they are doing,try to relax,and become calm again．Too much stress results in physical,emotional,and mental health problems.
There are numerous physical effects of stress．Stress can affect the heart．It can increase the pulse rate,make the heart miss beats,and can cause high blood pressure．Stress can affect the respiratory system．It can lead to asthma．It can cause a person to breathe too fast,resulting in a loss of important carbon dioxide．Stress can affect the stomach．It can cause stomach aches and problems digesting food．These are only a few examples of the wide range of illnesses and symptoms resulting from stress.
Emotions are also easily affected by stress．People suffering from stress often feel anxious．They may have panic attacks．They may feel tired all the time．When people are under stress,they often overreact to little problems．For example,a normally gentle parent under a lot of stress at work may yell at a child for dropping a glass of juice．Stress can make people angry,moody,or nervous.
Long-term stress can lead to a variety of serious mental illnesses．Depression,an extreme feeling of sadness and hopelessness,can be the result of continued and increasing stress．Alcoholism and other addictions often develop as a result of overuse of alcohol or drugs to try to relieve stress．Eating disorders,such as anorexia,are sometimes caused by stress and are often made worse by stress．If stress is allowed to continue,then one's mental health is put at risk.
It is obvious that stress is a serious problem．It attacks the body．So,reduce stress:stop the world and rest for a while.
Stress can affect the respiratory system by__.A.decreasing the pulse rate
B.a loss of carbon dioxide
C.causing breathing problems
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考题
Stress makes a person want to stop whatever they are doing,try to relax,and become calm again．Too much stress results in physical,emotional,and mental health problems.
There are numerous physical effects of stress．Stress can affect the heart．It can increase the pulse rate,make the heart miss beats,and can cause high blood pressure．Stress can affect the respiratory system．It can lead to asthma．It can cause a person to breathe too fast,resulting in a loss of important carbon dioxide．Stress can affect the stomach．It can cause stomach aches and problems digesting food．These are only a few examples of the wide range of illnesses and symptoms resulting from stress.
Emotions are also easily affected by stress．People suffering from stress often feel anxious．They may have panic attacks．They may feel tired all the time．When people are under stress,they often overreact to little problems．For example,a normally gentle parent under a lot of stress at work may yell at a child for dropping a glass of juice．Stress can make people angry,moody,or nervous.
Long-term stress can lead to a variety of serious mental illnesses．Depression,an extreme feeling of sadness and hopelessness,can be the result of continued and increasing stress．Alcoholism and other addictions often develop as a result of overuse of alcohol or drugs to try to relieve stress．Eating disorders,such as anorexia,are sometimes caused by stress and are often made worse by stress．If stress is allowed to continue,then one's mental health is put at risk.
It is obvious that stress is a serious problem．It attacks the body．So,reduce stress:stop the world and rest for a while.
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考题
Of the two types of sentence stress, sense stress shows contrast, while logical stress shows meaning.（）A对B错
考题
Of the two types of sentence stress, sense stress shows contrast, while logical stress shows meaning.（）
考题
When defining a function activity, what is true about the Result Type?（） (Choose two.)A、Result Type is optional.B、Result Type is mandatory.C、Result Type can be changed after it is assigned to the function activity.D、Result Type should belong to the same item type as the function activity
考题
单选题Two main processes that determine oil prices are ______.A
media accounts and oil marketsB
economic fundamentals and irrational fears or the actions of shadowy governmentsC
consumers’ fears and suppliers’ political decisionsD
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考题
单选题Your vessel has a midships engine room and the cargo is concentrated in the end holds．The vessel is（）.A
sagging with tensile stress on main deckB
sagging with compressive stress on main deckC
hogging with tensile stress on main deckD
hogging with compressive stress on main deck
考题
单选题Sometimes it is desirable to connect a member both by riveting and welding. Which statement is TRUE concerning this procedure? （）A
Tearing through the member is more likely in this type connectionB
The weld may be broken by the stresses caused by rivetingC
The weld increases the tensile stress on the rivet headsD
The welding must be completed before the riveting commences
考题
单选题1）#include
2）usingnamespacestd；
3）intmain（）
4）{
5）inta，b，result；
6）coutab；
8）result=3*a-2*b+1；
9）cout"resultis"
A
please input two numbers：/nB
please input two numbers：C
cout”please input two numbers：/n”D
”please input two numbers：/n”
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Gerald WallaceB
Ben HolmesC
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double-acting engineB
opposed pistons engineC
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单选题The main function of tie rods in the construction of large, low speed diesel engines is to（）.A
stiffen the bedplate in way of the main bearings to increase the engines longitudinal strengthB
accept most of the tensile loading that results from the firing forces developed during operationC
mount the engine frame securely to the hull to prevent shaft coupling misalignmentD
connect the crosshead solidly to the piston rod
考题
单选题The internal force of a material, which tends to resist deformation when subjected to external forces, is known as （）.A
stressB
strainC
shear strengthD
ultimate tensile strength
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单选题Stability is determined principally by the location of the point of application of two forces: the downward-acting gravity force and the（）.A
upward-acting weight forceB
downward-acting weight forceC
upward-acting buoyant forceD
environmental force
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单选题Proper lubrication of the main bearing is more easily obtained in a single acting four-stroke/cycle diesel engine than in a single acting two-stroke/cycle diesel engine because （）A
bearing pressure in a four-stroke/cycle acting single diesel engine is continually reversedB
bearing pressure in a two-stroke/cycle single acting diesel engine is continually reversedC
the maximum bearing pressure is higher in a single acting two-stroke/cycle diesel engineD
two-stoke/cycle diesel engines require more complicated lubrication piping
考题
判断题Of the two types of sentence stress, sense stress shows contrast, while logical stress shows meaning.（）A
对B
错
考题
单选题The result of two forces acting in opposite directions and along parallel lines，is an example of what type of stress?（）A
TensileB
CompressionC
ShearD
Strain
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单选题In a single acting, two-stroke/cycle, diesel generator engine, the power impulse in an individual cylinder occurs （）A
once every crankshaft revolutionB
once every two crankshaft revolutionsC
once every piston strokeD
twice every piston stoke
考题
单选题One function of a bulwark is to（）.A
help keep the deck dryB
prevent stress concentrations on the stringer plateC
protect against twisting forces exerted on the frame of the vesselD
reinforce the side stringers
考题
单选题The centre of lateral resistance is（）.A
the center of the hydrodynamic forces acting on the underwater hull to resist the effect of the windB
the point of influence of wind on the shipC
the pivot pointD
the point on the ship's above-water structure upon which the whole force of the wind can be considered an act
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