更多"It is difficult to accurately predi"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]Do earthquakes （） often in North America
A. break
B. break out
C. happen to
D. occur
[单项选择]The following places were hit by earthquakes except______.
A. Japan
B. Canada
C. Northridge
D. Kobe
[单项选择]What did scientists learn about earthquakes at the Rocky Mountain Arsenal
A. They occur at about 4,000 meters below ground level.
B. The injection of water into earthquake faults prevents earthquakes from occurring.
C. They are usually caused by the oil in the faults.
D. Harmful earthquakes can be possibly prevented by causing small, harmless earthquakes.
[单项选择]To weaken the damage for earthquakes, scientists are working on ways to enable accurate prediction.
A. relieve
B. deduct
C. minimize
D. rid
[单项选择]What kind of earthquakes may not be so destructive
A. Those beneath the ocean.
B. Those that do not kill people directly.
C. Moderate earthquakes.
D. Minor earthquakes.
[单项选择]Major earthquakes are among nature's most devastating (破坏性的) events, causing an incalculable loss of life and property.
A. unmentionable
B. unprofitable
C. impossible
D. immeasurable
[单项选择]（）scientists understand how and why earthquakes happen, forecasts are usually inaccurate.
A. As
B. While
C. For
D. Since
[单项选择]What is said about the earthquakes that happened in China
A. Altogether 1,480,000 people were killed in the earthquakes.
B. In the past, earthquakes happened twice in China.
C. China is within the "ring of fire".
D. In the history, China had two worst earthquakes that took an enormous number of human lives.
