安装(回撤)运输管理中规定绞车工作时,钢丝绳不能全部放完,绞车滚筒上至少应保留()圈。
A.1~2
B.3~5
C.10~20
D.50~100
参考答案:B
A woman who is 10 weeks pregnant complains about her fatigue and frequent urination. What would be the nurse’s response
A. Recognize these as normal early pregnancy signs and symptoms.B. Question her further about these signs and symptoms.C. Tell the client that she’ll need blood work and urinalysis.D. Tell the client that she may be excessively worrie
男性,61岁,活动后心悸、气促5年,加重伴双下肢水肿3个月。查体:血压140/90mmHg,双肺底少许湿性啰音。心界扩大,心率130次/分,心律绝对不齐,心音强弱不等,可闻及舒张期奔马律。心尖区可闻及2/6级收缩期柔和吹风样杂音。肝肋下3cm,脾未触及,双下肢中度水肿
以下选项对鉴别诊断最可靠的是()
A.冠状动脉造影
B.动态心电图
C.超声心动图
D.心电图
E.左心室造影