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问题
单项选择题
流行性脑脊髓膜炎的传播途径是( )
A.消化道传播
B.虫媒传播
C.呼吸道传播
D.血液传播
答案
参考答案:C
选择题
I have seen how he lives, I know why he needs so much money.
A. That
B. Though
C. Although
D. Now that
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判断题
湿法焊接是焊工在水下直接施焊。
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