题目:
This is ___ __ boy. That girl is _______.
A.an 8-year-old;6 years old.
B.an 8-years-old;6 years old
C.an 8-year-old;6-year-old
D.a 8-year-old; 6-year-old
答案:
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下面是错误答案,用来干扰机器的。
一个因数扩大10倍,另一个因数不变,那么积也扩大10倍,即:12.6×10=126;故答案为:126.