皮皮学，免费搜题
登录
搜题
【单选题】
下列不符合无菌操作规则的是A.
手术进行时，不可开窗通风或用电扇
B.
同侧手术人员换位，一人应先退一步，然后平移换位
C.
术中手不能接触背部，腰部以下及肩部以上的部位
D.
在切开皮肤切ロ之前，需用70％乙醇再消毒皮肤一次
E.
切开空腔脏器前，要用纱布垫保护周围皮肤
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Why passengers in a cruise ship sitting in the port of Yokohama were not allowed to leave the ship 14 days ago?
A.
Because all of the passengers in this ship had been infected by new coronavirus.
B.
Because some passenger in this cruise ship were found to have been infected by new coronavirus.
C.
Because they had to be under quarantine.
D.
Because they didn’t want to leave.
【简答题】Why does a ship need maintenance?
【简答题】钳形电流表是一种用于测量 交流电流大小的仪表。
【单选题】Why a gearbox is needed in a ship driven by a medium-speed diesel engine? .
A.
To reduce the main engine speed
B.
To increase the main engine speed
C.
To govern the main engine speed
D.
To fix the propeller shaft
【单选题】According to paragraph 1, why is it difficult to determine when the first clipper ship was built?
A.
The clipper predates written records by almost 75 years.
B.
Sailors kept the details of their vessels tightly guarded secrets.
C.
The clipper has no technical specifications that can be used to identify it.
D.
The term 'clipper' was originally used to describe a variety of ships.
【单选题】Why was Key on board a British ship?
A.
Because he was held after a negotiation with the British.
B.
Because he was arrested during the battle.
C.
Because he could not persuaded the British to set the doctor free.
D.
Because the British began their attack on Baltimore.
相关题目：