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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
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举一反三
【简答题】从方框中选择适当的单词或短语，并用其正确形式完成句子 spend, talk about, between, on vacation, nothing, reason prefix = o ns = 'urn:schemas-microsoft-com:office:office' / have fun, hospital, take a walk, make, wait for, lazy, i...
【单选题】The German war plan for a rapid victory over France was based on the ______ that Germany could temporarily protect its eastern frontier against the much larger Russian forces.
A.
gamble
B.
galaxy
C.
garment
D.
giggle
【简答题】A．Because he is from Germany. B．Because the company was established by a German. C．Because German will be needed in their business. D．Because he likes the language of German.
【简答题】在受理客房预订时,首先要确认顾客的 _________ ,以决定是否接受预订,如果不能满足,则应 _________ 。
【简答题】从下面方框中选择适当的单词或短语，并用其正确形式填空。 manage to, have a gift for, catch sight of, settle down, rather than. have a chat with. within. surround 1. The driver didn't _____ another car in time so the accidenthappe...
【简答题】从下面方框中选择适当的单词或短语,并用其正确形式填空 。 by accident, go ahead, on the spot, on the contrary, account for. stare at, permit, lose one's patience 1. Finally he _____ with his wife and left home. 2. He could not __...
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