脓肿切开引流术（）。
A.局部浸润麻醉
B.指神经阻滞麻醉
C.颈丛神经阻滞麻醉
D.区域阻滞麻醉
E.表面浸润麻醉
参考答案：D
When ________ to danger and conflict, men tend to increase blood pressure, ________ nervous
or anxious. [ ]
A. exposed; felt
B. exposed; feeling
C. exposing; feeling
D. exposing; felt
6.4÷（0.8+0.4）
