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【单选题】
某降尘室由水平隔板分成两层，若将隔板抽掉，则（）。A.
生产能力不变
B.
含尘气体流速降低
C.
颗粒的停留时间减少
D.
生产能力减少
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举一反三
【单选题】How many times has the guest been to china in the situational dialogue of Chinese cuisines?
A.
One
B.
Two
C.
Three
D.
Four
【单选题】In the situational dialogue that we practiced at class, the rate for a room facing the ocean is_______ per night?
A.
$120
B.
$100
C.
$80
D.
$150
【简答题】阅读材料，回答问题。(10分) 材料一：第6次全国人口普查显示大陆人口为13．39亿人，比第5次人口普查增加7390万人，年平均增长0．57％，而1990年到2000年间年平均增长率为1．07％。2011年我国人口出生率为1．209％。死亡率为0．681％，人口的自然增长率为0．528％。 材料二：我国65岁及以上人口占总人口的比重示意图(65岁及以上年龄人口占总人口的7％，则出现人口老龄化)。 ...
【单选题】In the situational dialogues of duty free shop, what gift did the woman buy for her mother at last?
A.
a watch
B.
a mobile phone
C.
a pearl jewelry
D.
a coat
【单选题】In the situational dialogue of duty free shop, at last, the guest paid __________dollars for the gift.
A.
6000
B.
600
C.
160
D.
1600
【单选题】In the situational dialogue of duty free shop, tomorrow is the__________ birthday of the guest’s mother.
A.
60 th
B.
70 th
C.
80 th
D.
90 th
【单选题】In the situational leadership theory (SLT), readiness is defined as ________ to perform a task.
A.
the ability
B.
the willingness
C.
both the ability and willingness
D.
the motivation one has
【单选题】It’s the ___________time that the guest has been to China in the situational dialogue of Chinese cuisines?
A.
first
B.
second
C.
third
D.
fourth
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