无线电波按波长分为：长波、中波、短波、（）和微波。

波浪形磨耗按波长长度分为波纹、短波波浪和长波波浪。波纹多发生在（）。

创办山西大学堂的本意是（）。

癸卯学制将高等教育机构明确分为大学堂、高等学堂和（）。

X射线连续谱中存在一个短波极限，其波长入=()。

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

A salvor may be（）the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.

官立山东大学堂的首任校长是谁？（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

（）年西安邮电大学被确定为陕西省地方高水平重点建设大学。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。