铁锈色样痰可见于
A．肺炎克雷伯杆菌肺炎
B．肺泡出血
C．肺炎球菌性肺炎
D．左心衰竭
E．肺吸虫病
参考答案：B,C,E
A client received burns to his entire back and left arm. Using the Rule of Nines, the nurse can calculate that he has sustained burns on what percentage of his body
A. 9%.B. 18%.C. 27%.D. 36%.
一条光线经过P（2，3）点，射在直线l:x+y+1=0上，反射后穿过Q（1，1）.
（1）求光线的入射方程；
（2）求这条光线从P到Q的长度.
