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【单选题】
瘤胃内微生物共同生活在一起的关系是( )
A.
寄生
B.
竞争
C.
拮抗
D.
共生
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【单选题】轻钢门式刚架结构柱间支撑的间距一般为 30m ~ 40m ,不应大于( )。
A.
60米
B.
45米
C.
120米
D.
300米
【简答题】请问这是哪位立体主义大师的头像?
【单选题】级差式空压机级间压力过低常由什_引起?
A.
级间冷却不良
B.
空压机冷却太快
C.
前一级流量降低
D.
后一级气阀积碳严重
【单选题】轻钢门式刚架结构柱间支撑的间距一般为30m~40m,不应大于( )。
A.
60 米
B.
120 米
C.
45 米
D.
300 米
E.
150米
【单选题】SECTION B PASSAGES Directions: In this section, you will hear several passages. Listen to the passages carefully and then answer the questions that follow. 听力原文: Soon it would be the holidays, but bef...
A.
She wanted to pass the exams.
B.
She had not worked very much.
C.
She wanted her sister to worry about her.
D.
All the students were working hard.
【判断题】7四边形的壳单元尽可能作成接近正方形形状的单元
A.
正确
B.
错误
【单选题】Tom is one of those student who_______friendly; ,however, it is very hard t get along with him
A.
is appeared to be
B.
are appeared to be
C.
appears to be
D.
appear to be
【单选题】轻钢门式刚架结构柱间支撑的间距一般为30m~40m,不应大于( )
A.
300米
B.
120米
C.
60米
D.
45米
【单选题】Don ’ t her outside for a long time. It is very cold.
A.
keep ,  siting
B.
keep , sitting
C.
let , sits
D.
let , to sit
【单选题】Don ’ t go out ___ hat. It is very cold.
A.
without
B.
with
C.
with a
D.
without a
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