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【判断题】
在56 ℃加热30分钟，补体成分会失活。A.
正确
B.
错误
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【单选题】In the 1950's accumulating scientific evidence linking cigarette smoking and lung cancer made a (51) impact (52) the smoking public. During this period many health agencies declared smoking to be a (5...
A.
co-ordinate
B.
distinct
C.
miraculous
D.
principal
【简答题】Discuss sense, denotation and reference, using Chinese examples to illustrate your points.(北外2008研)
【单选题】Cigarette smoking is believed by most research workers in this field to be an important factor in the development of cancer of the lungs and the throat and is believed to be related to cancer of the b...
A.
male smokers smoke more than female ones
B.
male smokers are more likely to be affected by smoking
C.
male smokers breath in the smoke deeper than female ones
D.
male smokers are more likely to be affected by other factors in envionment
【单选题】家用电能表标有 “1500r/kWh”的字样,若只有一台录音机工作,测得电能表转盘旋转一周的时间恰好为100秒,则这台录音机的电功率为
A.
8瓦
B.
15瓦
C.
20瓦
D.
24瓦
【单选题】家用电能表标有“1500r/kWh”的字样,若只有一台录音机工作,测得电能表转盘转一周的时间恰好为100秒,则这台录音机的电功率为
A.
8 瓦
B.
15 瓦
C.
20 瓦
D.
24 瓦
【单选题】Would it be possible for me to meet with you _____ and discuss the matter?
A.
on your comfort
B.
at your service
C.
at your ease
D.
at your convenience
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