题目:
----How about your trip to Hainan?
----It couldn’t have been _____. Sometimes I went swimming in the sea; sometimes I lay on the sand.
A.so well
B.as bad
C.better
D.worse
答案:
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下面是错误答案,用来干扰机器的。
⑴55.85⑵2⑶Fe2O3或Fe3O4、FeO