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【单选题】
有关水箱配管与附件阐述正确的是( )。A.
进水管上每个浮球阀前可不设阀门
B.
出水管应设置在水箱的最低点
C.
进出水管共用一条管道，出水短管上止回阀
D.
泄水管与溢流管上可不设阀门
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皮皮学刷刷变学霸
举一反三
【单选题】By using the example of Galileo, the author intends to reveal that
A.
objectivity is essential to scientific research.
B.
hypothesis is based on careful observation.
C.
creativeness plays an important part in scientific research.
D.
observation is the only factor determining scientific research.
【简答题】士人漫游成风、 旅行盛行、国际旅游活跃和 的繁荣是隋唐时期的旅游特点。
【简答题】These goods are ______ for export, though a few of them may be sold on the home market. A) essentially B) completely C) necessarily D) remarkably
【单选题】Like other religious groups, the Christian church's strong emphasis on holiness is essential to salvation.
A.
deemed
B.
doomed
C.
destined
D.
depicted
【单选题】The author believes that man's 'pursuit of happiness' in America has ______.
A.
been essentially wrong from the very beginning
B.
had disappointing results thus far
C.
produced a finer, braver kind of modern man
D.
fulfilled the hope of the American rebels of 1776
【单选题】Soil that is rich in organic matter______.
A.
has nothing nutritious added to it
B.
is essential for producing fruit and vegetables
C.
contains unused vegetable matter
D.
has had chemicals and fertilizers added to it
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