更多"Solar energy causes"的相关试题:
[单项选择]Solar energy causes
A. less pollution than oil
B. more pollution than oil
C. the same pollution as oil
D. financial problem
[单项选择]It can be inferred that in promoting solar energy the US government ______.
A. admits its limitation of being expensive
B. rarely mentions its cost to homeowners
C. stands on the side of the majority of consumers
D. remains more objective than the solar equipment manufacturers
[单项选择]The reason why all the solar energy falling on the earth can' t be utilized is that ______ .
A. only a very small part is available
B. the sun is too distant from the earth
C. it takes thousands of years for this energy to be stored up in coal and oil
D. our scientific knowledge is not sufficient
[单项选择]Which of the following is NOT TRUE of solar energy
A. The technical problem of providing heat on cloudy days are not yet solved.
B. It costs much to have a solar energy system installed at home.
C. There are basically two types of solar energy.
D. Solar energy is clean, inexhaustible and free of risk.
[单项选择]What is the energy source of this so-called solar-sail vehicle
A. Sunlight.
B. Nuclear.
C. Wind.
D. Electricity.
[单项选择]What causes tide
A. The pull of the sun and the moon.
B. The heat of the sun.
C. The shape of the moon.
D. The light of the moon.
[单项选择]Causes of fashions are
A. uniform.
B. varied.
C. unknown.
D. inexplicable.
[单项选择]Opiate withdrawal causes severe physical discomfort and can be life-threatening. To minimize these effects, opiate users are commonly detoxified with which drug
A. Barbiturates.
B. Amphetamines.
C. Methadone.
D. Benzodiazepines.
[单项选择]Electronic equipment causes all the following problems except that______.
[单项选择]Communication satellites generally use solar cells as their source of electric power, although some {{U}}test{{/U}} satellites have used thermoelectric generators.
A. superior
B. authorized
C. former
D. experimental
[单项选择]The suggested causes of a given phenomenon cannot always be independently observed, and so it is hard to ______ the possibility of there being explanations alternative to the one proposed.
A. account for
B. rule out
C. guard against
D. do with
