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【多选题】
下列关于水泥检验规定及取样方法，正确的说法有()。A.
通用水泥出厂按同品种、同强度等级编号和取样
B.
散装水泥，按500t为一批，随机从不少于三个车罐中采取等量水泥，拌均匀后称取不少于12kg
C.
袋装水泥，按200t为一批，取样应有代表性，可连续取，总量不少于12kg
D.
硅酸盐水泥是气硬性胶凝材料
E.
水泥是水硬性胶凝材料
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举一反三
【单选题】People are talking about the new play _______in two weeks.
A.
to be put on
B.
to put on
C.
being put on
D.
put on
【单选题】What does the remark of the writer's friend imply?
A.
Waiters are usually skillful at talking with others.
B.
We should spend more time talking with our families.
C.
The good service of one culture may not suit people of another culture.
D.
People regard waiter's talk as one part of service.
【单选题】Jack received a letter this morning ______ that he got the job.
A.
telling
B.
speaking
C.
talking
D.
saying
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