以下哪一项不是下颌智齿冠周炎引发的颌面部间隙感染()
A.舌下间隙感染
B.咬肌间隙感染
C.翼下颌间隙感染
D.咽旁间隙感染
E.下颌下间隙感染
参考答案:A
Which of the following does NOT imply an informationally efficient market()
A. Many profit-maximizing participants, each acting independently of the others, analyze and value securities.
B. The timing of one news announcement is independent of other news announcements.
C. A risk-free asset exists, and investors can borrow and lend an unlimited amount at the risk-free rate.
保持昏迷患者呼吸道通畅的关键是()
A.及时吸出呼吸道分泌物
B.更换体位
C.仰卧时头应侧向一边
D.注意观察患者有无缺氧表现
E.观察患者有无点头呼吸