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【多选题】
排水沟的施工要点有( )。A.
排水沟长度根据实际需要而定，通常不宜超过500m
B.
排水沟线形要平顺，转弯处弧线形，其半径不宜小于5m
C.
排水沟沟底纵坡不宜小于0.3%，与其他排水设施的连接应顺畅
D.
排水沟沟壁外侧应填以黏性土或砂浆阻水
E.
排水沟的出水口，应设置跌水和急流槽将水流引出路基或引入排水系统
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A.
You should learn to control your voice
B.
You should learn to control your whole body
C.
You should learn to control your nervousness
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A.
She’s not attracted
B.
Embarrassment about her pregnancy
C.
He’s highborn
D.
Fear of being rejected
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A.
stay away from
B.
keep far from
C.
stay away
D.
keep from
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A.
make
B.
sake
C.
fake
D.
lake
【单选题】— ______ do you learn English? — I learn English by ______. [ ]
A.
How; listen to cassettes
B.
What; speaking it
C.
How; listening to cassettes
D.
Where; asking the teacher
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A.
What; by
B.
Where; at
C.
Why, in
D.
How， by
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