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搜题
【单选题】
下列哪项对青霉素G的描述是错误的A.
为快速杀菌剂
B.
不耐酸,不可口服应用
C.
对敏感菌作用强.对人体毒性小
D.
对β-内酰胺酶稳定
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】A disadvantage of the high-low method of cost analysis is that
A.
it cannot be used when there are a very large number of observations
B.
it is too time consuming to apply
C.
it uses two extreme data points, which may not be representative of normal conditions
D.
it relies totally on the judgment of the person performing the cost analysis
【单选题】有关放置宫内节育器的适应证，下列选项错误的是（）
A.
孕60天人工流产，子宫腔9.5cm，不可放置IUD
B.
正常分娩后42天，恶露已净，会阴伤口愈合可放置
C.
宫内节育器可在阴道正常分娩胎盘娩出后即时放置
D.
如果宫腔≤5.5cm不能放置
E.
如果术前两次相隔4小时体温均高于37.5℃，不能放置
【单选题】Which one of the following is NOT a correct cause-effect analysis?
A.
Too little sleep may cause us to eat more.
B.
Women giving birth at a senior age may have overweight children.
C.
The habit of smoking keeps the extra pounds for us.
D.
Age is one factor to be considered when discussing weight problem.
【单选题】男性40岁,不规则发热,半年余,反复抗菌无效,明显消瘦,侨居国外多年,临床考虑是否同艾滋病有关,下列哪检查更有价值
A.
痰培养
B.
胸部CT
C.
血清抗ˉHIV
D.
HIV分离
E.
CD4/CD8比值，CD4计数
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