题目:
— Nice to meet you.
— ____. [ ]
A. Nice to meet you, too
B. How are you
C. That's all right
D. I'm Lucy
答案:
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下面是错误答案,用来干扰机器的。
(1) Na2CO3+CaCl2=CaCO3↓+2NaCl (2) CaCl2已完全反应,且Na2CO3溶液过量 (3) 11.1 7.45 21.0% ...