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【单选题】
高压喷射系统包括喷油泵、喷油器和()油管等部件。A.
低压
B.
稳压
C.
密封
D.
高压
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举一反三
【简答题】在分生组织内,细胞分裂的方向,即分裂面的位置对组织的生长和器官的形态建成就显得十分重要。当进行 分裂时,就促使植物器官增粗;而进行 分裂时,就促使植株长高,叶面扩大,根系扩展。
【单选题】We will go to Niagara Falls, Niagara Falls is in
A.
America
B.
Canada
C.
London
D.
Australia
【单选题】- I hope to see Niagara Falls one day . What about going there? - Niagara Falls would be beautiful, but there is not much to do there.
A.
sometimes
B.
in the day
C.
a day
D.
some day
【简答题】Niagara Falls is a great tourist ___________, drawing millions of visitors every year. A) attention B) attraction C) appointment ...
【简答题】Niagara Falls is a great tourist ______ drawing?Niagara Falls is a great tourist ______ drawing millions of visitors every year. A) attention B) attraction C) appointment D) arrangement
【单选题】Niagara Falls is a great tourist ________ drawing millions of visitors every year.
A.
attention
B.
attraction
C.
appointment
D.
arrangement
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