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【单选题】
( )、氯气、氮氧化物、硫化氢是常见的刺激性气体,容易发生中毒事故。A.
氨气
B.
乙醇
C.
甲烷
D.
乙烯
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皮皮学刷刷变学霸
举一反三
【单选题】It’s _____ good feeling for people to admire this great work that gives them ______ pleasure
A.
/ ; a
B.
a; /
C.
the ; a
D.
a ; the
【简答题】根据短文内容,从短文后的选项中选出能填入空白处的最佳选项,选项中有两项为多余选项。 Live Every Day Like It’s A Holiday We feel great on holiday because we let go of everyday stresses and strains. ___36___ So whether or not you’re going away t...
【简答题】◆ wonder v . 1 to ask yourself questions or express a desire to know about something 自忖,想知道; 2 to feel or express great surprise at something 感到奇怪,惊异 n. 1 a feeling of great surprise and admiration ca...
【简答题】Why is freshman friendship so 1 ____ ? Mainly because, on the one hand, freshman year is the 2_______ of college life, which is a great 3____________ in your life. In freshman year, you meet new peo...
【简答题】Our of ceremonies seems to be a little late..., so I guess it’s up to me to begin. When __1__ first got out that the music program was cut and about the retirement of my husband.. I’ve never se...
【简答题】It’s a great feeling to be floating high in the air.
【单选题】下列标准中,属于强制性国家标准的是( )。
A.
DB 23/T120-2001
B.
GB/9298-2003
C.
GB/T 20163-2006
D.
GB/Z 17976-2000
【单选题】下列标准中,属于强制性国家标准的是( )
A.
GB/T20163-2006
B.
GB/Z 17976-2000
C.
GB 19298-2003
D.
DB23/T120-2001
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