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【简答题】
植物的生殖器官包括_________、____________和____________。
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【简答题】完形填空。 I can honestly say it was the best of times and the worst of times. I was joyfully expecting my first child at the same time that my mother was 1 her battle with a brain tumor (瘤). For ten years...
【单选题】根据(GB/T2550-2007)规定,氧气管为 () ,乙炔管为红色。
A.
蓝色
B.
黑色
C.
绿色
【单选题】根据GB/T 2550--2007《气体焊接设备焊接、切割和类似作业用橡胶软管》的规定,气焊、气割所用氧气胶管的颜色是 。
A.
蓝色
B.
黑色
C.
红色
D.
黄色
【简答题】I know this is not quite the right word, but I can’t be bothered to think of _____. A.a better B.a best C.the better D.the good
【单选题】I know this is not quite the right word, but I can’t be bothered to think of ______.
A.
a better
B.
a best
C.
the better
D.
the good
【简答题】数控系统一般由几个模块组成?
【简答题】I can honestly say it was the best of times and the worst of times. I was joyfully expecting my first child at the same time that my mother was 1 her battle with a brain tumor(瘤). For ten years, my fi...
【单选题】根据GB/T2550--2007《气体焊接设备焊接、切割和类似作业用橡胶软管》的规定,气焊、气割所用乙炔胶管的颜色是()。
A.
灰色
B.
黑色
C.
红色
D.
黄色
【单选题】Who can it be? I'm quite ______a loss to guess.
A.
of
B.
on
C.
in
D.
at
【简答题】I can play football very well.I ____________ quite ____________ playing football.
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