皮皮学，免费搜题
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【多选题】
对商品进行关联购买分析,可以帮助()A.
客服部门可以以此向买家做关联推荐
B.
设计部门可以以此设计关联推荐
C.
买家可以有针对性的购买关联商品
D.
买家购买更高效
拍照语音搜题，微信中搜索"皮皮学"使用
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】I insisted that all the students to smoke at school .
A.
not to be allowed
B.
not allow
C.
were not allowed
D.
not should be allowed
【单选题】I insisted that all the students ______to smoke at school.
A.
not be allowed
B.
not allow
C.
were not allowed
D.
not should be allowed
【简答题】并发的酸碱平衡失调应是
【简答题】肺是如何调节酸碱平衡的?
【单选题】I insisted that we ______ overnight at the hotel, and finally all the group members agreed.
A.
stay
B.
stayed
C.
will stay
D.
have to stay
【简答题】肺主要通过______来调节酸碱平衡。
【简答题】试述机体调节酸碱平衡的机制。
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