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【单选题】
不宜用来生产蒸汽养护混凝土构件的水泥是:A.
普通硅酸盐水泥
B.
矿渣硅酸盐水泥
C.
火山灰硅酸盐水泥
D.
粉煤灰硅酸盐水泥
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B.
with
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about
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on
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A.
amused
B.
pleased
C.
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D.
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A.
surprised: surprised
B.
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C.
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D.
surprised: surprising
【单选题】After we finished high school, my friend John joined a band. Now he hangs out with his new friends, We make plans ,and he doesn ’ t show up ,He never used to let me down like that. In the last sentenc...
A.
let me fall down
B.
let me feel disappointed
C.
make fun of me
D.
let me lie down
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