搜题请搜索小程序“爱下问搜题”
问题 单项选择题

对煤气管道及附属设备进行保温叙述不正确的是（）。

A.对Dg100mm以下的煤气管道应设蒸汽伴随管保温；

B.保温材料有超细波动丝棉，矿渣棉，石棉被等；

C.对Dg500mm以上的开闭器，应安装保温筐进行保温；

D.对排水器，流量孔板，翻板等应设保温管保温。

答案

参考答案：C

阅读理解

阅读理解

       This is a boy. His name is Tom. He has a nice cat. It is an English cat. It has black and gray hair. Lucy and Mike are Tom's friends. They have cats, too. Their names are Mimi and Maomao. They are Chinese

cats. They both have white hair. The English cat is five. The Chinese cats are three. They like their cats.

阅读短文，判断正(T)误(F)。

( ) 1. Lucy is Tom's friend.

( ) 2. Tom's cat is Chinese.

(     ) 3. The Chinese cats are five.

( ) 4. They like their cats.

( ) 5. Tom's cat is Mimi.
查看答案
单项选择题

在胸腔积液的鉴别诊断中，不符合渗出液特点的是（）

A.可凝固

B.蛋白质＞30g/L

C.细胞数＞500×106/L

D.比重＞1.018

E.乳酸脱氢酶（LDH）＜200U/L
查看答案