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【单选题】
离心泵原先在额定工况工作，排出阀后不会 。A.
流量减小
B.
工作扬程增大
C.
效率降低
D.
允许吸入真空度减小
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【单选题】Section A 听力原文：M: These vegetables look so fresh and they are only 25 cents a pound. W: Let's take more, and how about some apples and oranges too? Q: Where are the two speakers? (1)
A.
In a garden
B.
In a shop
C.
In an orchard
【单选题】It is simple to use one microprocessor to control ______ DS18B20s distributed over a large area.
A.
many
B.
much
C.
any
【单选题】Despite an overlay of quasi-literary French vocabulary stemming from thc Norman Invasion of 066, the daily vocabulary of English remained Germanic, ______ its grammatical structure.
A.
the same are
B.
and so are
C.
as did
D.
and so were
【单选题】Despite an overlay of quasi-literary French vocabulary stemming from the Norman Invasion of 1066, the daily vocabulary of English remained Germanic, ______ its grammatical structure.
A.
the same as
B.
and so are
C.
as did
D.
and so were
【单选题】听力原文：W: Look, so many people are crowding through the gates into the exhibition halls. M: But last year they had fewer visitors to the Fair. This year they have more visitors since the economy is boom...
A.
At an exhibition.
B.
At the office.
C.
At a fashion show.
D.
At a gallery.
【单选题】The flowers in our gardens _______ by the workers, and they look so beautiful.
A.
are watered
B.
is watered
C.
are watering
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