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【单选题】
经眼睑进行眼部二维超声检查，最佳探头频率A.
3.0MHz
B.
3.5MHz
C.
4.0MHz
D.
5.0MHz
E.
7.5MHz
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反馈参考答案：
举一反三
【简答题】冲压时落料拉深复合模的拉深凸模应( )。A. 点浇口 B. 内潜伏式浇口 C. 侧浇口 D. 边缘浇口
【单选题】If you don’t know the word, you can _________ in the dictionary.
A.
look it after
B.
look it up
C.
look for it
D.
look at it
【单选题】I don’t understant this word, Please _______ in the dictionary
A.
look it for
B.
look it up
C.
look up it
D.
look like it
【单选题】—Do Tara and Tina look _______? —No, they don't. They look _______. They are not _______ sisters. [ ]
A.
same; different; twin
B.
the same; different; twin
C.
same; the different; twins
D.
the same; the different: twins
【单选题】Don’t be afraid of new words. You can ______ in the dictionary.
A.
look at them
B.
look for them
C.
look them up
D.
look them over
【单选题】Why don’t you come and have a look?
A.
Why don’t
B.
Why not
C.
Why about
D.
What don’t
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