硬膜外血肿典型形态为()。
A.圆形
B.梭形
C.不规则形
D.新月形
E.球形
参考答案:B
I'd appreciate ____ if you would like to teach me how to use the computer. [ ]
A. that
B. it
C. this
D. you
心源性呼吸困难中最先出现的是
A.阵发性夜间呼吸困难
B.劳力性呼吸困难
C.端坐呼吸
D.心源性哮喘
E.急性肺水肿