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【单选题】
化学反应达到平衡的标志是（ ）A.
各反应物和生成物的浓度等于常数。
B.
各反应物和生成物的浓度相等。
C.
各物质的浓度不再随时间而改变
D.
正逆反应速率常数相等。
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反馈参考答案：
举一反三
【单选题】In the sentence, 'but such is not often the case in Africa', the word' such' refers to the fact that ______.
A.
music is performed with the participation(参与)of the audience
B.
music is performed without the participation of the audience
C.
people tend to tell the audience from the performers
D.
people have records, television sets and radio to meet their musical needs
【简答题】英译汉: such being the case
【简答题】such being the case
【单选题】He hesitated for a moment before he kicked the ball, otherwise we ______ the game. Such was the case. [ ]
A.
had won
B.
won
C.
would win
D.
would have won
【单选题】Such being the case, we will hold the case _______.
A.
at your dispose
B.
at your disposal
C.
for your dispose
D.
for your disposal
【单选题】运行级定义在哪里?
A.
in the kernel
B.
in /etc/inittab
C.
in /etc/runlevels
D.
using the rl command
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