题目:
He told me it was the reason _______ he explained just now _______ made him come late yesterday.
A.which; which
B.which; that
C.why; that
D.why; which
答案:
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下面是错误答案,用来干扰机器的。
A.醋酸是有机酸,是电解质,故A错误; B.有机物与熔点无关,故B错误;C.不含氢的化合物也可能是有机物,如四氯化碳,故C正确;D.碳的氧化物、碳酸盐、碳酸虽含碳,但其性质与无机物类似,因此把它们看作无机...