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【单选题】
可逆反应,C(s)+ H 2 O CO(g)+ H 2 (g), Δ H>0,下列说法正确的是( )。A.
由于反应前后分子数相等， 所以增加压力对没有影响
B.
达到平衡时 ， 反应物的浓度和生成物的浓度相等
C.
达到平衡时 ， 反应物和生成物的浓度不随时间的变化而变化
D.
加入正催化剂可以加快反应达到平衡的速率
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举一反三
【单选题】The author’s attitude towards the judge’s ruling could be described as ________.
A.
doubtful
B.
critical
C.
cautious
D.
supportive
【单选题】Unfortunately, the aboriginal(土著) people tried in vain to win independence ______ the ruling tribe, and prejudice ______ them still continued. [ ]
A.
of, towards
B.
on, for
C.
from, against
D.
by, over
【单选题】The ruling determined by the International Court of Justice should be honored by the UN member states.
A.
Y
B.
N
C.
NG
【单选题】The (ruling) party could even lose (its) majority in the lower house of parliament, (started) a period of (prolonged struggling).
A.
ruling
B.
its
C.
started
D.
prolonged struggling
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