女性,18岁,诊断为风湿热一年,考虑此患者病变已侵犯到心脏,风湿性心瓣膜病最常见的并发症是
A. 充血性心力衰竭
B. 贫血
C. 心源性休克
D. 室性心律失常
E. 下肢静脉血栓
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学生,16岁,平素体健,学校体检时心率96次/分,律齐,心尖区闻及舒张期隆隆样杂音,心界增大不明显。恰当的保健指导是
A. 保持卧床休息
B. 及早洋地黄治疗
C. 宜口服利尿剂
D. 避免重体力活动,防止感染,经常随访
E. 住院进行治疗
单片机的总线是指( )
A. 地址总线
B. 控制总线
C. 数据总线
D. 地址总线、数据总线、控制总线
_______is to struggle.
A. Living
B. Live
C. To live
D. To be lived
He likes _______, but he doesn’t like _______ today because it is too cold.
A. to swim; to swim
B. swimming; swimming
C. to swim; swimming
D. swimming; to swim