发生小脑幕切迹疝时,引起患者昏迷的直接原因是()
A.脑缺氧
B.脑缺血
C.呼吸循环障碍
D.脑干受压
E.脑脊液循环受阻
参考答案:D
Schools in the east tend to be better equipped, ____ those in the west are relatively poor.[ ]
A. As
B. While
C. When
D. But
请问现在墙面刷乳胶漆都流行什么色彩?我不太想刷白色,又想像不出哪种好一点?