A.the performance tests used in the study of sleep deficit
B.special branches of knowledge that are being studied
C.people whose behavior or reactions are being studied
D.the psychological consequences of sleep deficit
单选题 | The word “subjects” (Line 1, Para. 4) refers to ________. | 查看答案 |
单选题 | Mrs. Lackey was awakened by the ringing of the bedside phone 12 hours after her husband’s boat had been ________. | 查看答案 |
单选题 | Before he started work, I asked the builder to give me an ________ of the cost of repairing the roof. | 查看答案 |
单选题 | Life is a candle ________ to burn ever brighter. | 查看答案 |
单选题 | A friendship may be ________, casual, situational or deep and lasting. | 查看答案 |
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单选题 | While in London, we paid a visit to the hospital founded ________ the nurse Florence Nightingale. | 查看答案 |
单选题 | It can be concluded from the passage that one should sleep as many hours as is necessary to ________. | 查看答案 |
单选题 | We often advise him not to drink more wine ________ is good for his health. | 查看答案 |
单选题 | What does the author imply by saying “living space... is figured... also in cubic volume above the earth” (Lines 7-8, Para. 3)? | 查看答案 |
单选题 | The author’s attitude towards the current situation in the exploitation of natural resources is ________. | 查看答案 |
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单选题 | To knowingly allow oneself to purse unhealthy habits is compared by Fried and Crapo to ________. | 查看答案 |
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单选题 | It’s time ________ about the traffic problem downtown. | 查看答案 |
单选题 | The service operates 36 libraries throughout the country, while six ________ libraries specially serve the countryside. | 查看答案 |
单选题 | To call the music of another music-culture “primitive” is ________ one’s own standards on a group that does not recognize them. | 查看答案 |
单选题 | He failed to supply the facts relevant ________ the case in question. | 查看答案 |
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