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【单选题】
关于电子显微镜，下列哪项有误A.
组织或细胞观察前均需经超薄切片
B.
分为透射式和扫描式两大类
C.
分辨率可达 0 . 2nm
D.
利用电子束作照明源
E.
在荧光屏上成像
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举一反三
【单选题】As a lover of popular music, she enjoys listening to it _____ MP3.
A.
in
B.
on
C.
with
D.
by
【单选题】Read about the changes in Petra Schein's life. Choose the correct options. In her free time, Petra enjoys listening to music. She (6) to learn to play a musical instrument for a long time.
A.
has wanted
B.
wanted
【简答题】Computer networks are data communication systems made up of hardware and software. A network is a collection of computers and devices connected together via communication devices such as cable telepho...
【单选题】She enjoys ( ).
A.
listen to music.
B.
listen music.
C.
listening to music.
D.
listening music.
【单选题】Julie enjoys listening music very much. She often says to me that _________ is more interesting than music. [ ]
A.
nothing
B.
something
C.
everything
【简答题】She enjoys listening to pop music, her sister likes classical music better.
【简答题】She enjoys listening pop music, _______ (but, however) her sister doesn't.
相关题目：
【单选题】She enjoys ( ).
A.
listen to music.
B.
listen music.
C.
listening to music.
D.
listening music.
参考解析：
知识点：
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