用氧氟沙星治疗的患者,当换成左氧氟沙星时可降低剂量。()
参考答案:对
根据首字母提示完成单词 。
1. Dave has worked for 6 hours, so now he is very s .
2. The o day, he bought a present for me.
3. They aren't s enough at that age.
4. He often s___ up reading until midnight.
5. Do you like your school u____?
倒锥法测水泥浆体流动度适用于流出时间小于()S的水泥浆体。
A.15
B.25
C.35
D.45