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问题 单项选择题

风湿性心脏瓣膜病伴心力衰竭病人，服用地高辛治疗1周，前3日每天服用0.5mg，后4日每天服用0.25mg，现症状体征均明显改善，心率80次/分，心电图示ST段呈鱼钩样改变，目前正确的治疗措施就是

A．停用地高辛

B．减少地高辛用量

C．增加地高辛剂量

D．继续给予地高辛原剂量

E．改用每日静脉注射西地兰0.2mg

答案

参考答案：D

单项选择题

上部烟叶采收需（）。

A、适时早收

B、到充分成熟采收

C、尚熟采收

D、任何时期
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单项选择题

Time planning ______.

A) involves determining how the various tasks required to completed the project, and the activities within the tasks, will be accomplished in terms of sequence and dependency
B) refers to setting up the vacation schedule for each member of the project team
C) is the sole responsibility of the project scheduling department
D) is having a well staked scheduling department
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