急性再生障碍性贫血时血液学改变为（）。

急性再生障碍性贫血时血液学改变为（）

急性再生障碍性贫血时血液学改变为（　）

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（）.

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。

某皮鞋厂女工李某，女，19岁，因月经过多，于1990年5月20日至卫生院门诊，诊治无效。2天后到县中心医院妇产科就诊，治疗2天后，病情未见好转，仍出血不止，于是转入该院血液科住院治疗。检查后诊断为再生障碍性贫血。6月8日因大出血死亡。住院期间，曾有一位医师怀疑该病员的疾病与职业病有关。但未进一步确诊。如怀疑该患者疾病与职业有关，如何证实这种假设？