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问题 单项选择题

普通硅酸盐水泥、矿渣硅酸盐水泥、火山灰质硅酸盐水泥、粉煤灰硅酸盐水泥的压蒸膨胀率均不大于( )时为体积安定性合格。

A．0.30%

B．0.50%

C．0.80%

D．1.20%

答案

参考答案：B

单项选择题

Which of the following statements is not true

A) Attribute sampling is the process of assessing whether results conform to specifications or not.
B) Prevention means keeping errors out of the process by applying actions before the process starts changing its input.
C) Variables sampling means that the result is classified into one of the 3 categories: "acceptable"-"acceptable after rework" "rejected" .
D) Inspection is often mainly done to keep errors out of the hands of the customer instead of as a means of process control.
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单项选择题 B型题

盐酸多柔比星（）

A.抗雌激素类药

B.抗代谢药物

C.抗肿瘤抗生素

D.抗肿瘤植物有效成分

E.抗肿瘤金属配合物
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