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【单选题】
立体交叉桥的思路解决物理矛盾“十字路口既要横向通行,也要纵向通行”,属于( )原理。A.
空间分离
B.
时间分离
C.
条件分离
D.
系统分离
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反馈参考答案：
举一反三
【单选题】We walked a long way to see him off, only _____ that he had just left.
A.
found
B.
to find
C.
finding
D.
having found
【单选题】—_____ does your English teacher teach you English songs? —Once a week. [ ]
A.
How many
B.
How long
C.
How soon
D.
How often
【单选题】W h o once said “A light heart lives long” ?
A.
Jaidee .
B.
Shakespeare .
C.
Jaidee’s professor .
【单选题】－ ______ does your mother watch the Talk Show? － Once a week. A. How long B. H
A.
－- ______ does your mother watch the Talk Show? － Once a week. A. How long
B.
How often
C.
How soon
【简答题】Once off that long High Street, he found himself in some very poor parts of the town.
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