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【单选题】
某的断面尺寸为200mm*300mm,则该的当量直径是 。A.
240mm
B.
250mm
C.
300mm
D.
200mm
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举一反三
【单选题】__________ yourself to sunlight for too much time will do harm to your skin.
A.
Exposed
B.
Exposing
C.
Being Exposed
D.
Have exposed
【单选题】--Look at the stone bridge! Do you know it was built? --In the 1860s. It is quite old.
A.
when
B.
how
C.
where
D.
why
【简答题】Before the 1970s people normally used cash to buy things, and women couldn't even borrow money on their own. But today it's the norm to have a credit card, and it's (1) ________ to be in debt. What's ...
【简答题】管理部门用现金500元购办公用品
【简答题】v．补全对话,(10分） A:You don't look well． What- s the matter? B: _____41______ A:Oh dear ! Why don't you go to bed for a rest? B: _____42_____ A:Shall I call him and tell him you're ill? B: _____43_____ A:O...
【单选题】_______ to sunlight for too much time will do harm to one’s skin, so you should make it a rule to get your skin creamed before going out in summer.
A.
Exposed
B.
Having exposed
C.
Being exposed
D.
To expose
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