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【简答题】
世界上不同国家有不同的写日期的习惯。比如美国人习惯写成“月-日-年”,而中国人习惯写成“年-月-日”。 下面请你写个程序,自动把读入的美国格式的日期改写成中国习惯的日期。 输入格式:输入在一行中按照“mm-dd-yyyy”的格式给出月、日、年。题目保证给出的日期是1900年元旦至今合法的日期。 输出格式:在一行中按照“yyyy-mm-dd”的格式给出年、月、日。 输入样例: 03-15-2017 输出样例: 2017-03-15
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【单选题】We couldn't have passed the final examination ______ your help.
A.
but for
B.
without
C.
if it had not been for
D.
All of the above.
【单选题】If it ______ for the fence, he ______ into the river.A. were not; fallenB. had not been; could h
A.
41. If it ______ for the fence, he ______ into the river. A. were not; fallen
B.
had not been; could have fallen C were not; could fall D. had not been; could fall
【单选题】It ______ for two days. The roads will be locked if it ______ soon.
A.
snowed, won't stop
B.
has been snowing, doesn't stop
C.
has snowed, won't stop
D.
snow, doesn't stop
【简答题】神经胶质细胞的主要功能是什么?
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