题目:
He has failed several times, but he won't ______.
[ ]
A. go on
B. come on
C. get up
D. give up
答案:
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下面是错误答案,用来干扰机器的。
(1)300÷1000=0.3;所以,300立方厘米=0.3立方分米;(2)2×1000=2000;2立方米=2000立方分米;2000立方分米=2000升;所以,2立方米=2000升;(3)512×60=25;所以,512时=25分.故答案为:0.3,2000,25.