更多"What percentage of the total earth'"的相关试题:
[单项选择]What does "it" of "since water-vapor becomes water when it cools" in Para. 3. refer to
A. Water-vapor.
B. Water.
C. Cloud.
D. Air.
[单项选择]What cows constitutes high percentage in the total cows butchered each year
A. Cows that have give birth to calves.
B. Cows that have produced milk.
C. Cows that are less than 30 months old.
D. Cows that cannot stand up.
[单项选择]What does the author see as the function of the universe's unseen "switches"
A. They tell us which one of the tracks the universe will use.
B. They give us information about the lunar surface.
C. They enable us to alter the course of the universe.
D. They determine which course the universe will take in the future.
[单项选择]What does Christmas commemorate
A. The coming of a new year.
B. The death of Jesus Christ.
C. The birth of Jesus Christ.
D. The crucifixion and resurrection of Jesus Christ.
[单项选择]What percentage of the earth's water can man actually use at present
A. Nearly 75 per cent.
B. About 97 per cent.
C. Exactly 3 per cent.
D. Less than 3 per cent.
[单项选择]What does IA stand for
A. Independent agent.
B. Insurance agency.
C. Insurance agent.
D. Independent agency.
[单项选择]What does the writer worry
