The passage focuses on ______. In the second paragraph the word "paramagnetic" means ______.

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问题 The passage focuses on ______.
In the second paragraph the word "paramagnetic" means ______.

选项 A、slightly magnetic
B、a weak magnetic field
C、a strong magnetic substance
D、the under-water magnetic power

答案A

解析 这是个词汇题。解这种题需要先找到该词所在的句子,答案往往从中可以读出。paramagnetic在第二段首句,句子后半部分的or very weakly responsive to a magnetic field就是解释,故选slightly magnetic。
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