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【简答题】
试述下列砌筑时的质量要求，说明其理由。 （1）为什么水平砂浆缝不能过过厚？ （2）为什么不能用干砖砌筑，也不能用被雨水淋透的砖砌筑？ （3）为什么不能有通缝，更不能用包心砌法？ （4）为什么不能在砂浆中任意加水，更不能用隔夜砂浆？ （5）为什么不能用直槎连接先后砌筑的墙体，更不能在纵横墙交接处采用直槎？
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【单选题】Christopher is not married yet: he is still a【36】. He is interested【37】football, which is an exciting【38】and enjoys【39】to watch a football【40】. So most winter Saturday afternoons he puts on his old ra...
A.
bachelor
B.
young man
C.
single
D.
spinster
【单选题】—— Is he still working? ——Yes,he ____ now and he _____ yet.
A.
is still working; hasn’t finished
B.
Works; doesn’t finish
【简答题】临床常见的I型超敏反应性疾病有：__________；__________；__________；__________。
【单选题】When the author says robots are still pretty dumb, he means______.
A.
robots have not yet possessed sense of touch
B.
robots still cannot read
C.
there are still many things robots cannot do
D.
humans are no match for robots
【单选题】Though he spent much time on the last maths problem，yet he still couldn’t__________it．
A.
solve
B.
count
C.
reflect
D.
determine
【简答题】临床上常见的I型超敏反应性疾病有______、______、______、______和______。
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