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【单选题】
根据给出的主视图和俯视图,正确的左视图应该是【图片】A.
1
B.
2
C.
3
D.
4
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【单选题】下列关于有机物分析的说法中，正确的是 [ ]
A.
某有机物在过量氧气中充分燃烧，只生成CO 2 和H 2 O，由此可知该有机物中一定只含有碳氢两种元素
B.
质谱法可以分析出某有机物的相对分子质量，从而可推断出该有机物的结构简式
C.
不同化学键或官能团对红外光的吸收频率不同，故可以利用红外光谱图来分析有机物含有的化学键和官能团
D.
二甲醚（CH 3 -O-CH 3 ）中含有两个甲基，故它的核磁共振氢谱图中有两个吸收峰
【简答题】A．Tom looks good today. B．She doesn't like Tom. C．She wants a white shirt. D．Tom should change a blue shirt.
【简答题】Chris: Hi, Dave. Where (1)______ you yesterday? You (2)______ come to English.Brandon: I (3)______ at home. I (4)______ all day for my final in Biology. What (5)______ you do in class?Chris: We (6)___...
【简答题】A．She is not sure Tom is joking. B．She thinks Tom wants to go into business. C．She thinks Tom may sell his shop. D．She thinks Tom has already studied in university.
【简答题】11. I read that ____ are
very intelt. A. australian sheepdogs B. Australian sheepdogs C. Australian-sheepdogs
【单选题】下列关于有机物分析的说法中，正确的是 [ ]
A.
某有机物在过量氧气中充分燃烧，只生成CO 2 和H 2 O，由此可知该有机物中一定只含有碳氢两种元素
B.
质谱法可以分析出某有机物的相对分子质量，从而即可推断出该有机物的结构简式
C.
不同化学键或官能团对红外光的吸收频率不同，故可以利用红外光谱图来分析有机物含有的化学键和官能团
D.
二甲醚(CH 3 -O-CH 3 )中含有两个甲基，故核磁共振氢谱图中有两个吸收峰
【单选题】I told her this small story at great length. I do not know what she read into that letter, ... (Para.11)
A.
I told her this small and long story. I do not know whether she have read the story or not.
B.
I told her this small story in detail. I do not know whether she understood the meaning of the letter.
C.
I told her this small story in detail. I do not know whether she have read the story or not
【单选题】Man:I'm really exhausted．But I don't want to miss the film that comes on at 11. Woman:If I were you, I'd skip it. We both have to get up early tomorrow. And anyway, I've heard it isn't that exciting. ...
A.
The man should stay up and watch the program.
B.
The man should read something exciting instead.
C.
The man should go to bed at eleven.
D.
The man should give up watching the movie.
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