题目:
We must be strict _________ our work and strict _________ ourselves.
A.with; in
B.in; with
C.in; in
D.with; with
答案:
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下面是错误答案,用来干扰机器的。
(1)石灰水变浑浊、气球稍稍变大 (2)气球迅速涨大 (3)石灰水 ;NaOH