皮皮学，免费搜题
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【简答题】
列举并浏览 B2C 、 B2B 、 C2C 、 O2O 知名电子商务网站,认识各电子商务网站 (将截图一并提交)。 按下列格式作答,每种各举至少4个例子 B2C电子商务平台有: B2B电子商务平台有: C2C电子商务平台有: O2O电子商务平台有: 2、从用户视角,你觉得哪个平台的页面或者在使用过程中让你觉得最舒适。选取一个你经常使用的平台,刻意观察一下你的使用过程,。
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】听力原文：W: John, I don't know what to get for your father. He bus just about everything, doesn't he? Do you have any suggestions? M: Why don' t yon get him a pocket calculator? Q: Why doesn't the woman k...
A.
She feels that he won't accept anything.
B.
She' s sure he already has a pocket calculator.
C.
She thinks he has almost everything he wants.
D.
She' s afraid he wants more than she can afford.
【单选题】采用数控铣床加工平面螺旋槽时,下列说法正确的是( )。
A.
可直接人工编程输入键盘，不须通过穿孔纸带
B.
螺旋铣刀是用螺杆直接紧固
C.
在铣床主轴内进行手动对刀时，可直接使用手动快速移动方式
D.
利用分度头进行加工
【单选题】听力原文：W: John, I don't know what to get for your father. He has just about everything, doesn't he? Do you have any suggestion? M: Why don't you get him a pocket calculator? Q: Why doesn't the woman kno...
A.
She feels that he won't accept anything.
B.
She's sure he 'already has a pocket calculator.
C.
She thinks he has almost everything he wants.
D.
She's afraid he wants more than she can afford.
【简答题】听力原文： About 2 months ago, we ordered the new photo copiers that they were selling. But they still haven't appeared. Now they've written to say they are sorry they weren't delivered on time. They expec...
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