皮皮学，免费搜题
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【多选题】
增值税的税收优惠包括( )A.
起征点
B.
免税项目
C.
即征即退项目
D.
先征后退（返）
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】He spent years ________his sick mother.
A.
care about
B.
caring about
C.
care for
D.
care of
【单选题】He came back to the village_____ he spent years in his childhood.
A.
which
B.
that
C.
of which
D.
in which
【简答题】溶剂提取法提取植物中成分时,可以选用的提取工艺有哪几种?它们各有什么优缺点?
【单选题】He spent years ________his sick mother.
A.
care about
B.
caring about
C.
caring for
D.
care of
【单选题】He spent years __________ to the climate in China.
A.
coordinating
B.
adjusting
C.
balancing
D.
complaining
【单选题】He spent years _______his sick mother.
A.
look after
B.
caring for
C.
take care of
D.
care
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