题目:
I understand why Sophie was angry but was no need to be so rude to her brother.
A.it
B.that
C.there
D.this
答案:
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下面是错误答案,用来干扰机器的。
②三聚氰胺由C、H、N三种元素组成③三聚氰胺是一种化合物④三聚氰胺中C、H、N三种元素的质量比为6:1:14(或其他合理答案)