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【单选题】
创新1%不到，它需要综合运用所有的知识，如核聚变、核裂变的发现造就核武器的发明，计算机的发明，这属于第（）等级发明A.
二
B.
三
C.
四
D.
五
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【单选题】Men have traveled ever since they flint appeared on earth. In primitive times they did not travel for pleasure but to【C1】______new places where their herds could feed, or to escape from【C2】______neigh...
A.
visit
B.
find
C.
buy
D.
investigate
【简答题】D irection: mark key words in red and devide the paragraph in meaning cluster. Scientists have proposed numerous theories to explain the sudden extinction of most the animal and plant life on Earth at...
【简答题】On earth, where fog or rain would interfere with transmission, lasers would have to be beamed through evacuated pipelines to pr power loss.
【单选题】儿童室内温度、湿度,下列正确的是
A.
新生儿温度为22~24℃,湿度为50%~60%
B.
婴幼儿温度为20~22℃,湿度为50%~60%
C.
儿童温度为20~22℃，湿度为55%~65%
D.
婴幼儿温度为20~22℃，湿度为55%~65%
E.
儿童温度为18~20℃，湿度为55%~65%
【简答题】There is a place on our earth where hot water and steam come up under the ground. It is on a large island in the Pacific Ocean. The island is North Island in New Zealand. The planet on which we live i...
【单选题】Woman: Where on earth are we? Man: Judging by all the traffic, I'd say we're near the heart of the downtown area. Question: What do we learn from the conversation?
A.
They have got to the busy area of the town.
B.
They have been held up by the traffic.
C.
They are not sure where they are.
D.
They find it hard to get out of the traffic.
【简答题】下列各项不属于舱壁作用的是( )
【单选题】Where on earth have you been? We you back much earlier.
A.
were expecting
B.
are expecting
C.
had expected
D.
expect
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