题目内容

内酰胺类抗生素的抗菌机制是( )

A. 抑制菌体细胞壁合成
B. 影响胞浆膜的通透性
C. 抑制细菌核酸合成
D. 抑制菌体蛋白质合成
E. 影响菌体叶酸代谢

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关于霉素G性质的叙述,错误的是( )

A. 水溶液性质不稳定
B. 可引起过敏反应,甚至引起过敏性休克
C. 口服可被胃酸破坏
D. 半衰期为4~6小时
E. 不耐酶,青霉素酶可使其失去活性

关于第一代头孢菌素类的叙述,错误的是( )

A. 对革兰阳性菌的作用强
B. 对革兰阴性菌也有很强的作用
C. 肾毒性较第二代、第三代大
D. 对内酰胺酶较稳定
E. 主用于耐药金葡菌感染及敏感菌引起的呼吸道及泌尿道感染

关于头孢菌素类的叙述,错误的是( )

A. 抗菌机制与青霉素类相似
B. 与青霉素有部分交叉过敏反应
C. 第一代头孢菌素类对铜绿假单胞菌无效
D. 第三代头孢菌素类对肾有一定毒性
E. 第三代头孢菌素类对酶稳定性高

Choose the right word or phrase in the box to complete each of the following sentences.A. at riskB. cautionC. combinationD. continuous lineE. magic pointF. reading G. pre-hypertensionH. specialistsI. pointing toJ. range1. Local estrogen therapy should be used with ___ in patients with impaired liver function.2. With that blood pressure measurement, you’d be diagnosed with the abnormal condition of _.3. The outdoor chickens are more _ of picking up infection from wild birds, animals and the environment.4. When you choose a thermometer, be sure you know how to use it correctly to get an accurate _.5. All the symptoms are _ a disruption on a rather large scale in the digestive system.6. Adults will be told to “take personal responsibility” for ensuring they stay within a healthy weight _.7. Chinese culture came down in a _ from ancient times to the present.8. There is substantial crossover among dentists and other medical in diagnosing health conditions.9. The process is a _ of computer-aided diagnosing and experimental methods.10. There is no ___ where your blood pressure level becomes dangerous.