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【判断题】
团队在旅行期间,如果有行程变更、增加自费项目、取消景点游览等等情况发生,按照要求都应有游客的签字确认。游客签字的凭证由领队保存,以应付不测之用。A.
正确
B.
错误
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举一反三
【单选题】Mother always taught me to be thrifty and not to live______.
A.
beyond my means
B.
out of place
C.
at my leisure
D.
around the clock
【简答题】设 是数学期望为 的指数分布总体 X 的容量为 2 的样本. 设 , 试证明: .
【简答题】Grandpa My Hero My grandfather had only one child and that was my mother. He always wanted a son but it never happened. __26__ When my mom got pregnant，he thought he finally had a boy in the family， b...
【简答题】In the kitchen of my mother’s houses there has always been a wooden stand (木架) with a small notepad (记事本) and a hole for a pencil. I’m looking for paper on which to note down the name of a book I am r...
【简答题】已知数组a定义为int a[]={3,6,9,12};则a的各元素的值分别是( ),最小下标是( )。
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