皮皮学，免费搜题
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搜题
【单选题】
下列哪项不是英文搜索引擎?A.
CNKI
B.
Excite
C.
Google
D.
Altavista
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
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