如果看跌期权的买方将该期权平仓，则该买方将变为看跌期权的卖方。()

期权是一种选择权，买方既可以买入买权，也可以买入卖权，也可以同是买入买权和卖权。

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.

Vessels must be（）valid certificate of nationality or certificated of registry or license.

When loading or discharging dry mud or cement，crew members should use goggles and（）.

如果期权买方买入了认购期权，那么在期权合约的有效期限内如果该期权标的股票价格上涨，则（）。

看涨期权指期权的买方具有在约定期限内（或合约到期日）按（）买入一定数量基础金融工具的权利。

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。