抗绿脓杆菌作用最强的抗生素是（ ）
A．头孢他定
B．头孢拉定
C．头孢孟多
D．氯霉素
E．红霉素
参考答案：A
While working outdoors, Linda was ________ by the heat and fell to the ground, unconscious.
A．astonished
B．depressed
C．overcome
D．hit
检查热原的制剂为
A．注射剂
B．软膏剂
C．胶囊剂
D．颗粒剂
E．片剂
