皮皮学，免费搜题
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搜题
【判断题】
速卖通直通车营销，只有当买家点击了推广的商品时，进行扣费。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：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Pilots often look older than they really are because______.
A.
they eat dinner in the middle of the night
B.
they suffer a lot from the changes in time
C.
they have to work at the weekend
D.
they live far away from the airport
【单选题】-- Are these _______ all from No. 2 Middle School? -- Yes. They often _________ their free time to help the old here.
A.
volunteers; volunteers
B.
volunteer; volunteers
C.
volunteers; volunteer
D.
volunteer; volunteer
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