Dreams are often an elegant means of highlighting problems________  in the present or the past．

Checking account（or bank money） 支票帐户（或银行货币）

Can I （）a message or would you like to ring him on his mobile phone? 

法学的研究对象是(      )。

 ______ twice a year, whether it is a car or a bus or a truck, is the rule that every driver must obey in this city.

可以在（）阶段采用Make-or-buy决策分析。

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.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

请分析本票和支票与汇票的区别。