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【单选题】
近些年来开发了很多建筑保温材料，保温性能最好的是A.
聚氯乙烯泡沫塑料
B.
聚苯乙烯泡沫塑料
C.
聚氨脂泡沫塑料
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举一反三
【单选题】We returned school late from a party and found the door of the students' apartment ______.
A.
had closed
B.
close
C.
to close
D.
closed
【单选题】We ____ that the magazines you have borrowed be returned to the school library before the end of this month. [ ]
A.
hoped
B.
permitted
C.
wished
D.
required
【简答题】电动往复泵靠设_____防止排出压力过高。A. 高压继电器 B.排出空气室 B. 安全阀 C. 声光警报
【简答题】信息论的主要创始人是【1】
【简答题】根据句意及首字母的提示，补全单词。 1. When we meet for the first time, we usually s ____ hands. 2. I don't want to eat anything. I'm f______. 3. I often brush my teeth with this kind of t______. 4. I,t is a good ...
【单选题】When we returned from the ball, we found that our house ___ and many things __
A.
has broken into; has been stolen
B.
has broken into; had been stolen
C.
had been broken into; stolen
D.
had been broken; stolen
【单选题】Only when he returned ___________ that the war had ended and the army had come back.
A.
we tell
B.
we told
C.
did we tell
D.
were we told
【简答题】小组项目二的设计方案及运行文件、程序文件。 XX小组项目设计方案.doc XX小组项目运行文件.exe XX小组项目设计程序文件.zip
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