肛门直肠手术时的常用体位是（）
A．外吹乳痈
B．内吹乳痈
C．不乳儿乳痈
D． * * 破裂乳痈
E．席风呵乳
参考答案：C
Ladies and gentlemen, please fasten your seat belts. The plane .
A．takes off
B．is taking off
C．has taken off
D．took off
--Which floor do you live_____? --The first floor. And I live ________Room 2046.
A．on; in
B．on; on
C．in; on
D．in; in
