搜题请搜索小程序“爱下问搜题”
问题 单项选择题

患者，女性，66岁。胃癌晚期，不能进食，给予静脉高营养，静脉穿刺部位出现条索状红线，局部肿胀、发红，主诉疼痛感。

处理措施不妥的是（）

A.严格无菌操作

B.50%硫酸镁局部热敷

C.增加患肢活动

D.超短波理疗

E.更换穿刺部位

答案

参考答案：C

材料分析题

忻州网讯　2008年4月24日下午15时，一场突如其来的车祸在忻黑线静乐县窑会村附近路段发生，一对夫妻受重伤，肇事司机弃车逃逸。面对危难，一群在场的普通村民，不顾伤者身上的泥污和血迹，抢险救难，将伤者送到医院抢救，同时又奋勇追击几公里，将逃走的肇事司机薄德胜（现已被刑事拘留）擒获，扭送到公安机关，受到了人们的一致赞誉。请联系材料，以《让车祸告诉我们》为题，写一篇短文。 

                                                                                                                                                                

                                                                                                                                                                

                                                                                                                                                                

                                                                                                                                                                

                                                                                                                                                                

                                                                                                                                                                 

                                                                                                                                                                

                                                                                                                                                                

                                                                                                                                                                

                                                                                                                                                                

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单项选择题

现场干预试验必须具备哪些基本要素

A．试验对象、干预措施、试验效应

B．试验对象、干预措施、试验对照

C．试验对照、试验对象、试验效应

D．试验对象、随机分组、盲法

E．随机化、盲法、对照
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