皮皮学，免费搜题
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【多选题】
与光学显微镜相比,下列选项中属于扫描电子显微镜的独特优势为( )。A.
较高并连续可调的放大倍数
B.
高分辨率
C.
很小的景深
D.
样品制备简单
E.
可同时进行显微组织形貌观察和微区成分分析
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
【判断题】Rick thinks they need one more person to lift the books. ListeningB 1.m4a
A.
正确
B.
错误
【简答题】阅读理解。 Rick is only fif years old, but he's very rich. Two years ago, Rick started a football website for young people. 'I became interested in computers when I was eight because my father worked w...
【简答题】阅读理解。 One day an American called Simon went to London to visit his friend, Rick. Rick told him that his flat was on the first floor. When he arrived, Simon went straight to the first floor of the buil...
【单选题】可不可改到下次?
A.
May I take a change?
B.
May I take a rain check?
C.
Shall we take next time?
【单选题】— Is this your new pencil? — No, I think it is _____. [ ]
A.
Rick
B.
Ricks
C.
Rirks'
D.
Rick's
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