脑梗死发生于脑动脉主干,其临床表现通常不是()
A.意识障碍
B.昏迷
C.偏瘫
D.颅内高压
E.惊厥
参考答案:D
下列对强心苷的正性肌力作用的表现,叙述不正确的是()
A.提高心肌收缩时最高张力
B.心脏容积扩张
C.提高心肌收缩时的缩短速率
D.每播输出量增加
E.心脏容积-压力环左移下移
E-Mail is a fast ,cheap and convnient way to __(72)__ messages locally and internationally.
A.give and get
B.put and get
C.send and receive
D.get in and get out