中国改革开放开始于（）年。

汉朝的刑制改革始于（）。

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.

The （） is used for hauling in or letting out the wires or ropes.

试析汉初文景帝的刑制改革。

汉朝的刑制改革始于（）。

汉朝时中国疆域和今天中国疆域相比，（）已经成为汉朝时的中国疆域。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

中国改革开放开始于（）年。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。