如果气密座舱飞机的座舱高度上升率超过规定,则对飞机乘员的直接影响是()
A.体液沸腾
B.胀耳感觉
C.压耳感觉
参考答案:B
New traffic rules that took effect on January l, 2013 are much stricter______ than in the past.
A.that
B.this
C.those
D.what
镇静剂过量()
A.呼吸过缓
B.呼吸浅快
C.呼吸深快
D.呼吸深慢
E.呼吸过速