A.To show the key role played by air traffic controllers.
B.To show the great responsibility shouldered by the pilots.
C.To give an example of air disasters.
D.To show that air travel is far safer than driving a car.
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单选题 | As an excellent shooter, Peter practised aiming at both ________ targets and moving targets. | 查看答案 |
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单选题 | Babies will not be stimulated to smile by a person ________. | 查看答案 |
单选题 | Last year, the crime rate in Chicago has sharply ________. | 查看答案 |
单选题 | According to the passage, the Japanese fix their gaze on their conversation partner’s neck because ________. | 查看答案 |
单选题 | What is the position of the head of human-resource management in an American firm? | 查看答案 |
单选题 | Recently a number of cases have been reported of young children ________ a violent act previously seen on television. | 查看答案 |
单选题 | The of a cultural phenomenon is usually a logical consequence of some physical aspect in the life style of the people. | 查看答案 |
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单选题 | The work in the office was ________ by a constant stream of visitors. | 查看答案 |
单选题 | By ________ computation, he estimated that the repairs on the house would cost him a thousand dollars. | 查看答案 |
单选题 | I could see that my wife was ________ having that fur coat, whether I approved of it or not. | 查看答案 |
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单选题 | The ________ runner can run 2 miles in fifteen minutes. | 查看答案 |