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【简答题】
蝶形花冠由五枚花瓣组成,最上面最大的一片称(),侧面两片较小的称(),最下面的两片联合成龙骨状称()。
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【简答题】The cigarette ads which claim that smoking can help soothe anxiety__________.
【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】Medical scientists have long recognized that heart disease is linked to cigarette smoking．
【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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