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【单选题】
在水泥砂浆找平层上粘贴200平方米的瓷砖,粘贴层的厚度是3mm。已知每立方米需粘结剂1300kg,粘结剂每25kg。需要()包粘结剂?(粘结剂损耗率为5%)。A.
31
B.
33
C.
35
D.
38
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举一反三
【单选题】—Did you notice him enter the room just now? —No. I to the radio with my eyes shut.
A.
listened
B.
have listened
C.
am listening
D.
was listening
【简答题】( 1 )为什么某些肠道寄生虫如蛔虫在体内不会被消化道内的胃蛋白酶、胰蛋白酶消化? ( 2 )为什么蚕豆必须煮熟后食用,否则容易引起不适?
【简答题】( 1 )为什么某些肠道寄生虫如蛔虫在体内不会被消化道内的胃蛋白酶、胰蛋白酶消化( 2 )为什么蚕豆必须煮熟后食用,否则容易引起不适?
【单选题】--- Did you notice him come into the hall? --- Sorry, sir. I _______ with my friends online.
A.
was chatting
B.
chatted
C.
would chat
D.
am chatting
【简答题】(1) 为什么某些肠道寄生虫如蛔虫在体内不会被消化道内的胃蛋白酶,胰蛋白酶消化? (2) 为什么蚕豆必需煮熟后食用,否则容易引起不适?
【单选题】A : Did you notice him come in ? B: No, I —— a football .
A.
have watched
B.
had watched
C.
am watching
D.
was watching
【简答题】(1) 为什么某些肠道寄生虫如蛔虫在体内不会被消化道内的胃蛋白酶,胰蛋白酶消化? (2) 为什么蚕豆必需煮熟后食用,否则容易引起不适?
【单选题】A: Did you notice him come in? No. I _____ a football .
A.
have watched
B.
was watching
C.
were done
D.
am watching
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