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【单选题】
屋架的支座斜杆在平面内的计算长度取()A.
杆件的几何长度
B.
杆件几何长度的0.8倍
C.
杆件几何长度的0.9倍
D.
侧向不动点的距离
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举一反三
【单选题】— Who’s singing in the next room? — It ______ be Mary. She ______ New York.
A.
mustn’t, is in
B.
must, has gone to
C.
could, has been in
D.
can’t, has gone to
【单选题】The reporter didn’t ___________ /’men??n / more details about the accident.
A.
medicine
B.
monitor
C.
mention
D.
marathon
【简答题】Room temperature must be ______ ℃.
【单选题】Julia must ______ now, because the light of her room is turned off.
A.
sleep
B.
sleeping
C.
be sleeping
【简答题】Host and reporter, the ( ) reads news stories, introduces reports by others and may interview news sources live.
【单选题】He must be in the room, because the light in the room is__________.
A.
open
B.
on
C.
off
D.
in
【单选题】He must be in the room, because the light in the room is _____. [ ]
A.
open
B.
off
C.
on
D.
in
【单选题】The light is on in Tom's room. He ________ be at home now. [ ]
A.
could
B.
must
C.
can
D.
need
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