问题
多项选择题
第三代头孢菌素的特点是（）
A.对G+菌的抗菌作用比第一、二代强
B.抗菌谱比第一、二代更广
C.对β-内酰胺酶比第一、二代更稳定
D.肾毒性比第一、二代低
E.血浆半衰其较长
答案
参考答案：B, C, D, E
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第三代头孢菌素的特点是（）
A.对G+菌的抗菌作用比第一、二代强
B.抗菌谱比第一、二代更广
C.对β-内酰胺酶比第一、二代更稳定
D.肾毒性比第一、二代低
E.血浆半衰其较长
参考答案：B, C, D, E
完形填空（每题1分，共10分） A little girl went to a hospital. “I want to ___1___ a miracle(奇迹).” “What?” said the doctor. “My brother is badly ill, ___2___ my daddy says only a miracle can save my brother.” “We don’t sell miracles here, little girl. I’m ___3___ but I can’t help you,” said the doctor. “I have the ___4___ to pay for it.” said the girl. The doctor’s brother asked, “What miracle does your ___5___ need?” “I don’t know,” she answered. “My daddy can’t ___6___ for it, so I want to use my money.” “How much do you have?” asked the man. “A dollar and a half.” “Well,” ___7___ the man, “a dollar and a half can buy a miracle.” That man was a very good ___8___. The operation(手术) was free and her brother became well. “What’s the price ___9___ the operation?” her mom asked. The little girl smiled. She knew exactly how ___10___ a miracle was—a dollar and a half with the faith(诚意) of a little girl.
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