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【单选题】
采用下述两种反应器进行等温、恒容二级不可逆反应：①体积为Vr的一个活塞流反应器；②两个体积分别为0.5Vr的活塞流反应器的串联。在原料条件相同的情况下，两种反应器能达到的出口转化率（）。A.
无法判断
B.
前者大于后者
C.
相同
D.
前者小于后者
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举一反三
【单选题】—Have you seen the CCTV news on TV? —Yes, _______ children had a good festival on the _______ Children's Day. [ ]
A.
millions of; sixty
B.
ten million; sixty
C.
millions of; sixtieth
D.
ten millions; sixtieth
【简答题】屈原的（）是楚辞杰出的代表作。
【简答题】Luckily it was put out in time, but we found it difficult to again.
【单选题】The last paragraph tells us that in Britain______.
A.
parents have all benefited from children's clubs
B.
parents used to take their children to every club
C.
parents have come to know the standard of education
D.
parents used to be wise on how to raise children
【单选题】There was a fire in the hotel around midnight last Friday. Luckily, it was soon .
A.
turned on
B.
turned off
C.
put on
D.
put out
【单选题】下列关于汪曾祺的《四方食事》的艺术特点,描述错误的是( )
A.
好似野老闲言、家常话一般，饶有趣味
B.
具有历史散文的特色，显得科学严谨
C.
常常在文中旁征博引，知识面极其广博
D.
能体现他对某种诗意生活的追求与悍卫
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