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【多选题】
手术进行中的无菌原则正确的是:A.
下坠超过手术床边缘以下的辅料及缝线等若未污染可取回使用
B.
不可在手术人员背后传递器械及手术物品
C.
如手套破损或接触到有菌区，需另换无菌手套
D.
手术过程中,同侧人员需调换位置时,退后一步,背对背转到另一位置
E.
参观手术人员可靠近手术人员
拍照语音搜题，微信中搜索"皮皮学"使用
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【单选题】听力原文：W: Excuse me, Dr. Chandler, do you have a moment? I want W talk about the topic of my paper. M: Of course, what can I do for you, Sienna? W: I want to change the topic of my paper. You know I was...
A.
She wants to type up a biography about her uncle.
B.
She would like to find an interesting job working at NASA.
C.
She would like to introduce him to a recently retired astronaut.
D.
She wants to write a man who once worked in the U. S. space program.
【单选题】听力原文：W: Excuse me, Dr. Chandler, do you have a moment? I want W talk about the topic of my paper. M: Of course, what can I do for you, Sienna? W: (19) I want to change the topic of my paper. You know ...
A.
She wants to type up a biography about her uncle.
B.
She would like to find an interesting job working at NASA.
C.
She would like to introduce him to a recently retired astronaut.
D.
She wants to write a man who once worked in the U. S. space program.
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