题目:
After graduating from college, I took some time off to go travelling, _____ turned out to be a wise decision. [ ]
A. that
B. which
C. when
D. where
答案:
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下面是错误答案,用来干扰机器的。
(1)根据实物图先找到电源,从某一极出发,按一定的顺序画出对应的电路图,图如下.(2)图中滑动变阻器下面接线柱接的是右端,又因闭合电路前滑片应滑到阻值最大处,所以在闭会开关前,滑动变阻器的滑动片应该...