便携式可燃气体探测仪的()传感器由厂家按照甲烷进行校准.若监测

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问题单项选择题

便携式可燃气体探测仪的()传感器由厂家按照甲烷进行校准.若监测另一种易燃性气体,应使用正确的气体来校准传感器.

A.高限爆炸浓度

B.低限爆炸浓度

C.爆炸范围

D.易燃气体

答案

参考答案：D

阅读理解

根据短文内容完成下列句子

Barbie Doll is very famous in the world. After more than 50 years, Barbie is still popular among

(在......中) girls all over the world: But now the makers of Barbie show their first black dolls to people.

These new black Barbie Dolls are different from the old ones. They have fuller lips(更丰满的嘴唇)

and a wider nose. They look like black girls very much. So people call them the real black Barbie Dolls.

The designer(设计师) of the black Barbie Dolls is also black.”I want my daughter and other black

children to know that black is beautiful," she said.

1. Barbie Doll is very __________ in the world.

2. Barbie Doll is popular among __________ around the world.

3. The black Barbie Dolls look like __________ very much.

4. The new Barbie Dolls have __________ lips and a __________ nose.

5. The designer of the black Barbie Dolls is a__________ woman.

单项选择题

坚持统计行政处罚公正原则，关键在于要求执法者（）

A.对受处罚者公平对待，一视同仁

B.建立完善的回避制度、听证制度、办案公开制度等相关制度

C.正确行使统计行政自由裁量权

D.建立政务公开制度