皮皮学，免费搜题
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【多选题】
火车运输具有的优点有()A.
运输能力强
B.
受季节和气候影响小
C.
费用低
D.
灵活性强
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
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A.
5
B.
6
C.
7
D.
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【简答题】幼儿园适龄幼儿一般为____周岁到____周岁。幼儿园一般为____年制。
【简答题】In every language there seem to be certain "unmentionables" — words of such strong implications that they cannot be used in polite speech. In English, the first of these to come to mind are, of course...
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