人身意外伤害保险属于（）。
A.定额补偿保险
B.定额给付保险
C.非定额补偿保险
D.非定额给付保险
参考答案：B
Once you have become ______to cigarette smoking or alcohol, it is hard to _______it even though you try hard.
A, used; get away with B. addicted; get rid of
C. adapted; get down to D. accustomed; get off
革兰阴性杆菌感染可选用（）
A.半合成青霉素
B.天然青霉素
C.第一代头孢菌素
D.第三代头孢菌素
E.第四代头孢菌素
