更多"Why is it difficult to predict the "的相关试题:
[单项选择]Why is it difficult to predict the possible effects of electromagnetic fields on an airplane's computers
A. Because it remains a mystery what wavelengths are liable to be interfered with.
B. Because it is extremely dangerous to conduct such research on an airplane.
C. Because research scientists have not been able to produce the same effects in labs.
D. Because experts lack adequate equipment to do such research.
[单项选择]Why is it difficult to predict the weather for in advance for Autumn
A. Some forecasting machines do not work well in hot weather.
B. The weather patterns are more changeable in the autumn.
C. Experts spend less time studying autumn.
D. The National Weather Service misplaced its spring and summer data.
[单项选择]It is difficult to predict what his ________to the result will be.
A. opinion
B. reaction
C. view
D. impression
[单项选择]What is a possible negative effect of olestra according to some crit ics
[单项选择]It is difficult to accurately predict earthquakes because______.
A. earthquakes may take place anywhere, anytime
B. earthquakes may happen unexpectedly under the sea
C. earthquakes may take place while people are asleep
D. the taking place of earthquakes involves many factors
[单项选择]Why is transition difficult
A. Because transition requires money and time.
B. Because many manufacturers are unwilling to change their equipment.
C. Because research on new materials is very difficult.
D. Because it takes long time.
[单项选择]One reason it is difficult to know why the whales are dying is that ______.
A. the whales travel such a long distance
B. there are more whales than there used to be
C. the whale bodies are too old to study by the time they are found
D. the whales are endangered
[单项选择]One possible reason why women have better memories than men is that ______.
A. they have a wider range of interests
B. they are more reliant on the environment
C. they have an unusual power of focusing their attention
D. they are more interested in wharfs happening around them
