对患儿治疗哪项不可取
A．卧床休息B．鼓励多进食C．消化道隔离D．退热剂E．氯霉素静滴
参考答案：B
字符串常量”hello”的字符个数是( )。
A．3
B．4
C．5
D．6
In a sample of associates at a law firm, 30 percent are second-year associates, and 60 percent are not first-year associates. What percentage of the associates at the law firm have been there for more than two years ？（）
A. 10
B. 20
C. 30
D. 40
E. 50
