网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
单选题
Emulsion oils and sodium nitrite are both approved additives, but （） cannot be used if any pipes are galvanized or if soldered joints exist.
A
the latter
B
latter
C
former
D
the former
参考答案
参考解析
解析：
暂无解析
更多 “单选题Emulsion oils and sodium nitrite are both approved additives, but （） cannot be used if any pipes are galvanized or if soldered joints exist.A the latterB latterC formerD the former” 相关考题
考题
共用题干
U.S.Eats Too Much SaltPeople in the United States consume more than twice the recommended amount of salt,raising their risk for high blood pressure,heart attacks and strokes,government health experts said on Thursday.They found nearly 70 percent of U.S.adults are in high-risk groups that would benefit from a lower-salt diet of no more than 1,500 mg per day,yet most consume close to 3,500 mg per day.“It's important for people to eat less salt.People who adopt a heart-healthy eating pattern that includes a diet low in sodium and rich in potassium and calcium can improve their blood pressure,”Dr.Darwin Labarthe of the Centers for Disease Control and Prevention said in a statement."People need to know their recommended daily sodium limit and take action to reduce sodium intake,"Labarthe said.The study in CDC's weekly report on death and disease used national survey data to show that two out of three adults should be consuming no more than 1,500 mg of sodium per day because they are black or over the age of 40-which are considered highrisk groups.Yet studies show most people in the United States eat 3,436 mg of sodium per day,according to a 2005-2006 CDC estimate.Most of the sodium eaten comes from packaged,processed and restaurant foods.The CDC said it will join other agencies in the Health and Human Services department in working with major food manufacturers and chain restaurants to reduce sodium levels in the food supply.Nationwide,16 million men and women have heart disease and 5.8 million are estimated to have had a stroke.Cutting salt consumption can reduce these risks,the CDC said.The high-risk groups include those______.A:who are black B:who are over the age of 40C:who are white and young D:both A and B
考题
Which is the right way of listing salt content of 500 grams of bread?__________A.sodium: 32 gram
B.sodium: 320 milligrams
C.sodium: 3.2 gram
D.sodium: 320 gram
考题
下列（）为本体聚合。A、bulk polymerizationB、suspension polymerizationC、emulsion polymerizationD、solution polymerization
考题
单选题In large marine diesel engines cylinder oils usually contain additives formulated to impart the （） to clean the rings and grooves.A
inefficiencyB
oilinessC
detergencyD
purity
考题
单选题The treatment of the fuel oils involves storage, heating, filtering and（）A
centrifugingB
pressurizingC
atomizationD
igniting
考题
单选题To counteract these undesirable effects cylinder oils usually contain additives formulated to impart a high degree of （） and detergency.A
salinityB
alkalinityC
acidD
sanitary
考题
单选题Fires occurring in combustible metals, such as sodium or magnesium, are classified as a （）.A
class AB
class BC
class CD
class D
考题
单选题Which of the following methods might favor oil emulsion in bilge water?（）A
Raising temperatureB
less use of surfactantC
more use of solventD
polishing device fouling prevention
考题
单选题Emulsion oils and sodium nitrite are both approved additives, but the latter cannot be used if any pipes are （） or if any soldered joints exit.A
chromedB
weldedC
galvanizedD
bolted
考题
单选题Those generally used additives for cooling water are either anti-corrosion oils or inorganic（）.A
gasesB
paintsC
inhibitorsD
detergent
考题
单选题All self-propelled vessels on an international voyage must be equipped with how many Emergency Position Indicating Radio beacons (EPIRB)? （）A
One approved Category 1 EPIRBB
Three approved Category 1 EPIRBsC
One approved Class B EPIRBD
Two approved Class B EPIRBs
考题
单选题All self-propelled vessels on an international voyage must be equipped with how many Emergency Position Indicating Radiobeacons (EPIRB)（）?A
One approved Class A EPIRBB
Two approved Class A EPIRBsC
One approved Class B EPIRBsD
Two approved Class B EPIRBs
考题
单选题When comparing different fuels for different engines, the ignition quality of diesel fuel oils becomes a less critical consideration as （）A
the amount of lube oil additives increaseB
piston speeds increaseC
injection pressure decreaseD
engine speeds decrease
考题
单选题（） fuel oils （） lubricating oils require treatment before passing to the engine.A
Both；andB
Neither；norC
Either；orD
Both；or
考题
单选题If sludge accumulates on the underside of a diesel engine piston, it will（）A
cause blow-byB
chemically attack the piston skirtC
form an emulsion of lube oil and waterD
raise the piston temperature
热门标签
最新试卷