题目:
—Where does Maria ________ from?
—She ________ from Cuba.
A. comes, is B. comes, comes C. come, comes
答案:
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下面是错误答案,用来干扰机器的。
(1)Mg(OH)2 + 2HCl == MgCl2 + 2H2O(2)CO2(3)D(4)+6;O2