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【判断题】
O2O 商业模式可理解为线上体验消费、线下交易的商务模式。A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
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皮皮学刷刷变学霸
举一反三
【简答题】This morning, I went camping along a path in Green Natural Park with my friends. We were happy because it was a sunny day. We were expecting an enjoyable two-day holiday. On the way, we kept singing a...
【单选题】在平面应力状态下，对于任意两斜截面上的正应力σα=σβ成立的充分必要条件是：
A.
σx=σy,τxy≠0
B.
σx=σy,τxy=0
C.
σx≠σy,τxy≠0
D.
σx=σy=τxy
【简答题】阅读理解。 Dear Peter, My name is Frank. I am from America. Here is a picture of my friends. We are in the same grade. Look at the picture, in the middle, you can see my friend Jimmy. He likes all the spor...
【简答题】阅读理解并回答问题。 My name is Sally. I'm 9 years old. I often go to the park with my friends. We often play badminton (羽毛球) in the parks. It's my favourite . Many people are in the park, too. Some are rea...
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