更多"Why is it difficult to detect neutr"的相关试题:
[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]Why is transition so 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 10 years.
[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]That job is quite difficult. I can understand why you have ______ so many problems.
A. run for
B. run over
C. run off
D. run into
[单项选择]Why underground pipes are difficult to be identified
A. Water and gas pipes are not taken care by construction workers.
B. Underground pipe systems were destroyed during World War Ⅱ.
C. Many city planning blueprints can be found nowhere.
D. Pipes were buried too deep underground.
[单项选择]Why is it difficult for young consumers to borrow money from bank
[单项选择]Why is it difficult to improve the procedures for fixing wage levels
A. Because some industries have no unions.
B. Because unions are not organized according to industries.
C. Because only 55% of workers belong to unions.
D. Because some unions are too powerful.
[单项选择]Why is it difficult to predict the possible effects of electromagnetic fields on an airplane's computers ______.
A. Because it is extremely dangerous to conduct such research on an airplane.
B. Because it remains a mystery what wavelengths are liable to be interfered with.
C. Because research scientists have not been 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 say exactly how many miles of improved waterways are in operation
[单项选择]Why is it difficult for public policy to improve the market outcome
A. Because it is difficult to measure the inefficiencies.
B. Because perfectly competitive firms produce identical goods.
C. Because a new firm would offer a product different from those of the existing firms.
D. Because surplus is maximized under monopolistic competition.
[单项选择]Why did he find it more difficult to write orders
A. It needed the understanding of various military terms.
B. The writing required more accuracy and conciseness.
C. The different army units used diverse languages.
D. The knowledge of army equipment was difficult to master.
[单项选择]Why is social behavior difficult to change
[单项选择]Why was it difficult to get the public to accept shopping carts at first
A. Both men and women were afraid they would not look good if they used them.
B. People thought it unnecessary to use them because they never did much shopping.
C. The early shopping carts were too difficult to use.
D. Only men and women models were supposed to use such modern things.
[单项选择]One of the reasons why VCRs are so difficult to use is that ______.
A. the designers are often insensitive to the operational complexities of their machines
B. the range of features provided is unlimited
C. there is no ideal way of controlling quality
D. Their designers often ignore the complaints of their users
[单项选择]Why is it more difficult today to be good parents
[单项选择]Why has it been difficult for people to find out more about dreams
A. Different people have different ideas about dreams.
B. Different dreams have different meanings.
C. People can only have their dreams studied when they are sleeping.
D. People only have dreams when they are sick.
