皮皮学，免费搜题
登录
搜题
【单选题】
用来装载人员物资和各种设备的机体部分是( )?A.
机翼
B.
机身
C.
尾翼
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】Why has climate change become a major issue for both business and government?
A.
The body of scientific evidence is inconclusive.
B.
The solutions to the problems are unanimous.
C.
The weather patterns are becoming increasingly uniform.
D.
The change in climate patterns affects the entire planet.
E.
The effects are confined to national boundaries.
【单选题】What can we infer from the text?
A.
Climate change has caused great damage to most countries in the world.
B.
To stop climate change will greatly improve the development of the world.
C.
It is urgent for human beings to take measures to prevent climate change.
D.
Human beings should build man-made highlands to avoid floods.
【单选题】Why do Louisa’s parents sleep on the sofa?
A.
Because they give their bed to Katrina
B.
Because they can warm themselves by the gas fire
C.
Because they want to see Louisa get home safely after overnight work
【单选题】Where do Louisa and Mrs. Traynor have the conversation?
A.
Louisa’s home
B.
A car
C.
On the pavement
【简答题】利用封闭回路法确定极叉时,如果回路中绝缘节的个数为 时,满足极叉。
【单选题】下面关于轨道电路极性交叉的说法不正确的是（ ）。
A.
极性交叉的目的是防止相邻轨道电路的绝缘节破损时，引起轨道继电器错误动作
B.
绝缘节两侧的轨道电路采用不同频率的信号，就是轨道电路的极性交叉
C.
轨道电路的极性交叉实现了故障-安全的原则
D.
“人工极性交叉”需要增加一对钢轨绝缘和两根连线
【单选题】下列词语中注音有错误的一项是
A.
静女其姝（ shū） 踟蹰 （ chí chú ）
B.
自牧归荑（ yí） 城隅（ yú）
C.
彤管有炜（ wěi） 饥馑（ jǐn）
D.
千乘( shèng) 之国 喟（ kuì） 然
【简答题】什么是轨道电路的极叉？请你叙述一个不用封连钢轨绝缘就能检查极叉的检查方法？
相关题目：
参考解析：
知识点：
题目纠错 0
发布
