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利用甲烷与氯气发生取代反应制取副产品盐酸的设想在工业上已成为现实．某化学兴趣小组通过在实验室中模拟上述过程，其设计的模拟装置如下： （1）B装置有三种功能：①控制气流速度；②均匀混合气体；③______ （2）设V（Cl 2 ）/V（CH 4 ）=x，若理论上欲获得最多的氯化氢，则x≥______ （3）D装置的石棉中均匀混有KI粉末，其作用是______． （4）写出C装置中所发生反应的化学反应方程式（任意写一个）：______． （5）E装置中除盐酸外，还含有有机物，从E中分离出盐酸的最佳方法为______． A、分液法     B、蒸馏法         C、萃取分液法        D、结晶法 该装置还有缺陷，原因是没有进行尾气处理，其尾气主要成分为______（填编号）． A、CH 4 B、CH 3 Cl         C、CH 2 Cl 2 D、CHCl 3 ．
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【简答题】I now have a better understanding of Einstein's special theory of relativity after attending ______ lectures on the topic． 听了一系列爱因斯坦相对论的讲座之后，我对这个特殊理论有了更好的理解。
查看完整题目与答案
【单选题】I now have a better understanding of Einstein’s special theory of relativity after attending ________ lectures on the topic.
A.
a series of
B.
off balance
C.
at ease
D.
above all
查看完整题目与答案
【简答题】I now have a better understanding of Einstein ’ s special theory of relativity after attending lectures on the topic.
查看完整题目与答案
【单选题】I now have a better understanding of Einstain's special theory of relativity after attending ______ lectures on the topic.
A.
a series of
B.
the number of
C.
a great deal of
查看完整题目与答案
【简答题】Fill in each of the blanks in the following sentences with a word or phrase chosen from the following words. Change the forms where necessary. pursue fame a series of approach ambition w...
查看完整题目与答案
【单选题】学习《狼》，老师在讲解“少时，一狼径去，其一犬坐于前。”一句中“犬”的意义时，指导学生学习了“犬”字的语法现象，下列加点词用法与其相同的一项是（ ）。
A.
斗折蛇行《小石潭记》
B.
春风又绿江南岸《泊船瓜洲》
C.
无案牍之劳形《陋室铭》
D.
居庙堂之高则忧其民《岳阳楼记》
查看完整题目与答案
【单选题】少时,一狼径去,其一犬坐于前。 上句中“犬”字理解正确的是( )
A.
狗。
B.
名词作状语，像狗一样，修饰“坐”。
C.
指前面的“狼”。
查看完整题目与答案
【单选题】It is ______ in plain terms that no pension can be paid to anyone under the age of sixty unless he is disabled.
A.
laid up
B.
laid down
C.
laid aside
D.
laid out
查看完整题目与答案
【单选题】"It just means I now have a better understanding of what's _____ stake, and how giving up is not an option." (Saflem: Why I keep speaking up even when people mock my accent)
A.
at
B.
on
C.
for
D.
by
查看完整题目与答案
【单选题】I now have a better understanding of Einstein's special theory of relativity after attending ____ lectures on the topic .
A.
believe in
B.
a series of
C.
work out
D.
off balance
查看完整题目与答案
相关题目：
【简答题】I now have a better understanding of Einstein's special theory of relativity after attending ______ lectures on the topic． 听了一系列爱因斯坦相对论的讲座之后，我对这个特殊理论有了更好的理解。
查看完整题目与答案
【单选题】I now have a better understanding of Einstein’s special theory of relativity after attending ________ lectures on the topic.
A.
a series of
B.
off balance
C.
at ease
D.
above all
查看完整题目与答案
【简答题】I now have a better understanding of Einstein ’ s special theory of relativity after attending lectures on the topic.
查看完整题目与答案
【单选题】I now have a better understanding of Einstain's special theory of relativity after attending ______ lectures on the topic.
A.
a series of
B.
the number of
C.
a great deal of
查看完整题目与答案
【简答题】Fill in each of the blanks in the following sentences with a word or phrase chosen from the following words. Change the forms where necessary. pursue fame a series of approach ambition w...
查看完整题目与答案
【单选题】学习《狼》，老师在讲解“少时，一狼径去，其一犬坐于前。”一句中“犬”的意义时，指导学生学习了“犬”字的语法现象，下列加点词用法与其相同的一项是（ ）。
A.
斗折蛇行《小石潭记》
B.
春风又绿江南岸《泊船瓜洲》
C.
无案牍之劳形《陋室铭》
D.
居庙堂之高则忧其民《岳阳楼记》
查看完整题目与答案
【单选题】少时,一狼径去,其一犬坐于前。 上句中“犬”字理解正确的是( )
A.
狗。
B.
名词作状语，像狗一样，修饰“坐”。
C.
指前面的“狼”。
查看完整题目与答案
【单选题】It is ______ in plain terms that no pension can be paid to anyone under the age of sixty unless he is disabled.
A.
laid up
B.
laid down
C.
laid aside
D.
laid out
查看完整题目与答案
【单选题】"It just means I now have a better understanding of what's _____ stake, and how giving up is not an option." (Saflem: Why I keep speaking up even when people mock my accent)
A.
at
B.
on
C.
for
D.
by
查看完整题目与答案
【单选题】I now have a better understanding of Einstein's special theory of relativity after attending ____ lectures on the topic .
A.
believe in
B.
a series of
C.
work out
D.
off balance
查看完整题目与答案
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