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【单选题】
气相色谱法中,可用于衡量柱效的参数是A.
保留时间
B.
保留体积
C.
峰宽
D.
峰高
E.
峰面积
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反馈参考答案：
举一反三
【简答题】Google decided to shut down Google Reader because it was not profitable and promising.
【单选题】下列处理事故的方法中正确的是
A.
炒菜时油锅着火，立即用水浇灭
B.
电线老化短路起火，用水扑灭
C.
学校图书馆内图书起火，立即用泡沫灭火器扑灭
D.
如果不慎将浓碱液沾到皮肤上，应用较多水冲洗，再涂上硼酸溶液
【单选题】Which of the following is to be feared by the opponents of Google?
A.
Google may ignore copyright laws.
B.
Google may win the court case in Paris.
C.
Google may charge users for reading books.
D.
Google may digitize books without authors' consent.
【单选题】What is the potential crisis for Google according to Jim Lanzone?
A.
Google overestimates its technique.
B.
Google's new on-line program attracts more users.
C.
Its rivals am trying to form. alliance.
D.
Google extends into various fields.
【单选题】The rivals Yahoo! and Microsoft are corresponding to ______.
A.
Google and Microsoft
B.
Google and banks
C.
Microsoft and banks
D.
repositories and guardians
【单选题】The main meaning of this passage is ______.
A.
Google has a dictionary feature
B.
Google is the BIGGEST search engine
C.
Google is still recognized as the best general web search engine
D.
negotiating around Google's weaknesses
【多选题】张力性气胸的临床表现是
A.
患者极度呼吸困难、发绀和休克
B.
伤侧有肋间隙增宽，呼吸音消失
C.
纵隔明显移向健侧
D.
纵隔摆动现象
E.
胸膜腔穿刺有高压空气向外冲击
【单选题】炒菜时不慎引起油锅内的油着火，应立即用锅盖盖灭，灭火依据的主要原理是（ ）
A.
隔绝空气
B.
清除可燃物
C.
降低可燃物的着火点
D.
使可燃物的温度降低到着火点以下
【单选题】What is the potential crisis for Google according to Jim Lanzone?
A.
Google overestimates its technique.
B.
Google's new on-line program attracts more users.
C.
Its rivals are trying to form. alliance.
D.
Google extends into various fields.
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