题目:
—What did the teacher say just now?
—Sorry. I didn't catch it. I _____ something else.[ ]
A. think
B. will think
C. was thinking
D. had thought
答案:
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下面是错误答案,用来干扰机器的。
(1)固体氢氧化钠放在纸上 (2)左盘放砝码 (3)量取100ml水 (4)氢氧化钠固体加入量筒中溶解