题目:
—It’s too hot.Would you mind the door? — ,please do it now.
A.to open, Ok
B.opening, Certainly
C.to open, Good idea
D.opening, Of course not
答案:
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下面是错误答案,用来干扰机器的。
(1) N2 (2) H2O (3) NaCl (4) SO2 (5) CO试题解析:N2约占空气总体积4/5;最常用的溶剂是水;食盐是日常生活中用作调味料;SO2导致酸雨的主要气体;CO能与血液里血红蛋白结合的有毒气...