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【单选题】
如下两个化合物在以下红外光谱区域中有主要区别的是：【图片】A.
3300 cm-1
B.
1500 cm-1
C.
2600 cm-1
D.
990 cm-1
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皮皮学刷刷变学霸
举一反三
【单选题】The father will make ____ a bike ____. A. her, himself B. she, himself C. her, herself D. she, herself
A.
her himself
B.
she himself
C.
her herself
D.
she herself
【简答题】填一填，根据图画提示填单词。 1. Close your b_____________ . Please listen. 2. He has a new b_____________ , and there is a p_____________ in it. 3. My p_____________ are very cool. 4. Li Ming is a s_____________ . ...
【简答题】Alice considered herself lucky that she was not injured in the accident．
【单选题】She will fly to Washington, ________ she can enjoy herself.
A.
that
B.
which
C.
where
D.
/
【单选题】以下关于心电图正确的描述是:
A.
P波代表左、右心室的除极过程
B.
P波代表左、右心房的除极过程
C.
QRS波代表左、右心室的复极过程
D.
QRS波代表左、右心房的复极过程
E.
ST段代表左、右心室的除极和复极过程
【单选题】— Who taught _____ French? — Nobody, she learned all by _____. [ ]
A.
herself, her
B.
she, herself
C.
her, herself
D.
her,she
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