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【单选题】
下述有关压力容器用液位计的叙述中，哪些不符合TSGR0004-2009《固定式压力容器安全技术监察规程》的规定（）A.
压力容器用液位符合有关标准的规定和《压力容器安全技术监察规程》的规定
B.
要求液面指示平稳的压力容器不宜采用浮子（标）式液位计
C.
应根据压力容器的介质、最高工作压力和温度正确选用液位计
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【单选题】—The shoes are very nice. I'll take them. —But you must _____ first. I think the size is a bit smaller for you. [ ]
A.
pay for them
B.
try them on
C.
put them on
D.
take them off
【单选题】The number of red-crowned cranes is getting ___________.
A.
small and small
B.
little and little
C.
smaller and smaller
D.
less and less
【单选题】The population of China is _____ than that in Australia. [ ]
A.
far more
B.
much larger
C.
much smaller
D.
far less
【单选题】The number of pandas(熊猫) becoming .
A.
is more and more
B.
are less and less
C.
is smaller and smaller
D.
are fewer and fewer
【单选题】According to the talk, what did David Sarnoff predict about radios?
A.
They would get smaller in size.
B.
Their signals would travel further.
C.
They would become less popular than television.
D.
They would be common household items.
【单选题】单级萃取的萃取率（理论收率）是指（ ）。
A.
萃取相中溶质的总量比萃余相中溶质总量的百分数
B.
萃取相中溶质的总量占原料液中溶质总量的百分数
C.
萃余相中溶质的总量占原料液中溶质总量的百分数
D.
萃余相中溶质的总量比萃取相中溶质总量的百分数
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