肺炎球菌肺炎抗菌治疗首选()
A.链霉素
B.氧氟沙星
C.青霉素
D.丁胺卡那
E.红霉素
参考答案:C
解析:肺炎球菌肺炎抗菌治疗首选青霉素。
非金属元素具有类似金属与盐溶液之间的置换反应规律,即活动性较强的非金属可把活动性较弱的非金属从其盐溶液中置换出来,如在溶液中发生下列反应:C12+2NaBr=2NaCl+Br2;Br2+2KI=2KBr+I2;I2+Na2S=2NaI+S↓由此可判断非金属的活泼性强弱顺序正确的是( )
A.C12>I2>Br2>S
B.C12>Br2>I2>S
C.S>I2>Br2>Cl2
D.C12>Br2>S>I2
Does the TV say ______ happened in Iraq every day
A.terrible something B.something terribleC.terrible anything D.anything terrible