题目内容
（请给出正确答案）
It is significant that chimpanzees make tools, but it is more important that ______.
A．they never make tools before they need them
B．they can make up simple equations
C．they stack items to make platforms
D．the tools are crude
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更多“It is significant that chimpan…”相关的问题
We may infer from the last paragraph that ______.
A．most educational experts are against the deal
B．the realization of the deal is significant in Mexico
C．the union's charge over teachers' careers is meaningless
D．the realization of the deal all depends on Josefina Vasquez Mota
A.by
B.of
C.with
D.to
A.bogs
B.streams
C.islands
D.ciffs
A．Y
B．N
C．NG
The word "significant" in Paragraph 3 has the similar meaning with ______.
A．fatal
B．meaningful
C．harmful
D．remarkable
Although much remained unaltered, _________ (不容否认) that some significant changes were occurring.
According to the text, fossil studies of radiolaria are significant because they.
A．live in the depths of the ocean
B．are one-celled
C．have survived through the ages
D．demonstrates climatic changes prior to humans
How many significant demographic changes ever occurred in the past one million years？
A．One.
B．Two.
C．Three.
D．None.
