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单选题
A celestial body’s complete orbit around another body is（）.
A
a rotation
B
a revolution
C
space motion
D
nutation
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Germs are everywhere. You can′t see them, but they are on your desk, on your computer, and even in the air!
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单选题The equator is（）.A
the primary great circle of the Earth perpendicular to the axisB
the line to which all celestial observations are reducedC
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All of the above
考题
单选题The resistance experienced when one body moves over another, ______ it is in contact, is called frictional force.A
to whichB
whereC
with which D
while
考题
单选题The most accurate method of determining gyrocompass error while underway is by（）.A
Comparing the gyro azimuth of a celestial body with the computed azimuth of the bodyB
Comparing the gyro heading with the magnetic compass headingC
Determining from the chart the course made good between celestial fixesD
It cannot be determined accurately at sea due to drift of unknown currents
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单选题An artificial sweetener, such as aspartame or sucralose, is said to contain no calories by the body’s not converting it into energy.A
by the body’s not converting it into energyB
by the body’s not convening them into energyC
because the body does not convert them into energyD
due to the body’s not converting the energy in themE
because the body does not convert it into energy
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单选题During one synodic rotation，a body makes one complete turn relative to the（）.A
EarthB
SunC
starsD
vernal equinox
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单选题A latitude line will be obtained by observing a body （）.A
on the prime verticalB
on the celestial horizonC
at lower transitD
on the Greenwich meridian
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单选题The case of identical twins from Germany shows that _____.A
environment can help determine people’s body shapeB
genes are the decisive factors for people’s body shapeC
identical twins are likely to enjoy different sportsD
identical twins may have different genes for different sports
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单选题A celestial body will cross the prime vertical circle when the latitude is numerically （）.A
Greater than the declination and both are of the same nameB
Less than the declination and both are of the same nameC
Greater than the declination and both are of contrary nameD
Less than the declination and both are of contrary name
考题
单选题What is a convenient and effective system of examining the body of an injury victim?（）A
Check the corresponding (left versus right) parts of the bodyB
Watch the patient's eyes as you probe parts of the bodyC
Look for discoloration of the patient's skinD
Look for uncontrolled vibration or twitching of parts of the body
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单选题What may help you feel better about your body?A
Observing other healthy people around you.B
Looking around at the models you see every day.C
Exercising every day to improve your body shape.D
Talking to your parent or even your doctor.
考题
单选题Concerning a celestial observation，the azimuth angle is measured from the principal vertical circle to the（）.A
Greenwich celestial meridianB
hour circle of the bodyC
local celestial meridianD
vertical circle of the body
考题
单选题The resistance experienced when one body moves over another, _____ it is in contact, is called frictional force.A
to whichB
whereC
with whichD
while
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