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查阅 “GB/T 29636-2013 疑似毒品中甲基苯丙胺的气相色谱、高效液相色谱和气相色谱-检验方法” 完成下列习题: 1 、 GB/T 29636-2013适应于 毒品案件 中 甲基苯丙胺的定性定量检验鉴定。 2 、 甲基苯丙胺的图中,特征离子碎片的比为 、 (由小到大排列) 。 3 、气相色谱-联用法检验疑似毒品中甲基苯丙胺,色谱柱的初始温度为 °C 、 以 °C/min升温至 °C,保持15min。
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【简答题】STM-1的速率是_______Mbit/s。
【单选题】----Don't forget to ask him to write to me. ----I won't. As soon as he ____, I'll ask him to write to you.
A.
will come
B.
came
C.
comes
D.
will coming
【单选题】--- Don’t forget to ask him to write to me. --- I won’t. As soon as he _______, I’ll ask him to write to you.
A.
will come
B.
came
C.
comes
D.
is coming
【单选题】--- Don’t forget to ask him to write to me. --- I won’t. As soon as he __ ______ _____, I’ll ask him to write to you. A. will come B. came C. comes D. is coming
A.
1
B.
2
C.
3
D.
4
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