皮皮学，免费搜题
登录
搜题
【单选题】
The tower remains intacteven after two hundred yearsA.
unknown
B.
unusual
C.
undamaged
D.
unstable
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】a green house is a building made of glass which is used for keeping plants warm when the outside temperature is low. In a similar way there are several gases in the atmosphere which trap the heat prod...
A.
the way in which gases are used for keeping plants warm
B.
a natural course which is to some degree helpful to us.
C.
the way greenhouse gases trap heat on the earth
D.
the whole course in which greenhouse gases prevent heat .
【简答题】The air filter is used on engine to trap contaminants, yet provide a free flow of air into the engine.
【判断题】The air filter is used in the engine to trap contaminants, yet provide a free flow of air into the engine. Air filters which are usually used in cars are made of paper element. These filters permit ai...
A.
正确
B.
错误
【简答题】按钮的哪个属性用于定义事件响应方法?
【简答题】影响变压器连接组别的因素有____、____、____。
【单选题】A high-temperature alarm or______which will melt is used to guard against the explosion of comperssor air pipelines.
A.
a flame trap
B.
a relief valve
C.
a fusible plug
D.
a bursting cap
【简答题】A trap is used to _____________________
【单选题】**A high temperature alarm or ____ which will melt is used to guard against the explosion of compressor air pipelines.
A.
a flame trap(阻焰器)
B.
a relief valve
C.
a fusible plug(易熔塞)
D.
a bursting cap(防爆)
【单选题】A high temperature alarm or （） which will melt is used to guard against the explosion of compressor air pipelines.
A.
a flame trap
B.
a relief valve
C.
a fusible plug
D.
a bursting cap
相关题目：
参考解析：
知识点：
题目纠错 0
发布
