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【判断题】
膳食中钙的摄入量高时,吸收量与摄入量成正比,吸收率相对身高。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】American people's idea of mastering Nature can be seen in the following activities ( ).
A.
They moved the American frontier westward.
B.
The construction of dams that hold back the waters of large rivers.
C.
The construction of tunnels that go through mountains.
D.
All of the above.
【单选题】According to the man, ______for the applicant.
A.
mastering a foreign language is necessary
B.
having ambitious ideas about future is important
C.
mastering English is very important
D.
working extra hours is required
【单选题】American people's idea of mastering Nature can be seen in the following activities ( ).
A.
They moved the American frontier westward.
B.
The construction of dams that hold back the waters of large rivers.
C.
The construction of tunnels that go through mountains.
D.
All of the other three choices are correct.
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