搜题请搜索小程序“爱下问搜题”
问题 单项选择题

高锰钢整铸辙叉心宽40mm断面处，辙叉心垂直磨耗（不含翼轨加高部分），50kg/m及以下钢轨，其他站线上超过（）为重伤。

A.4mm

B.6mm

C.8mm

D.10mm

答案

参考答案：D

填空题

根据所给汉语提示，写出空缺处单词正确形式。

1. He was one of the greatest Chinese writers of the 20th _____ (世纪).

2. Lao She's Teahouse gives a wonderful _____ (欢迎) to everyone from China

and from all over the world.

3. It takes us to see the teahouse as the _____ (中心) the neighbourhood.

4. Lao She wrote many _____ (戏剧) in his life.

5. There are many _____ (观众) in the cinema.
查看答案
单项选择题

下列疾病及其肺纹理特点描述，哪项不对（）

A.左心衰，肺纹理增多

B.肺动脉瓣狭窄，肺纹理减少

C.高原性肺水肿，肺纹理正常

D.肺大泡，肺纹理消失

E.慢性纤维空洞型肺结核，肺纹理聚拢
查看答案