CTL代表的细胞是（）

CTL代表的细胞是（）。

CTL细胞的作用是（　　）。

CTL代表的细胞是（）。

简述CTL细胞杀伤靶细胞的机制。

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.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

下列哪种细胞因子由Th细胞分泌并参与CTL的增殖及分化（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。