题目内容
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[主观题]
The research scientists often meet with problems______new types of instruments for their s
olution.
A．require
B．to require
C．required
D．requiring
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题目内容
（请给出正确答案）
如果结果不匹配，请 联系老师 获取答案
题目内容
（请给出正确答案）
A．require
B．to require
C．required
D．requiring
如果结果不匹配，请 联系老师 获取答案
更多“The research scientists often …”相关的问题
It can be inferred from the third paragraph that______.
A．the public's ignorance of scientific research results in attacks on science
B．a measure of mankind's humanity is taken into account
C．confusion and contradiction result from vulnerable campaigns
D．the debate is bound to aggravate in the next decade
A.message
B.information
C.research
D.confirmation
As an outstanding scholar, he has become ______ to the research team.
A．senior
B．junior
C．indispensable
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A．directed
B．indicated
C．judged
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Many a young scientist ______ engaged in the research work.
A．have
B．has
C．have been
D．has been
According to the text, the current research concentrates on______.
A．the charger
B．duration of the device
C．the internal battery
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