下列建筑能够体现北京城市政治职能的是
A B C D
A．A
B．B
C．C
D．D
答案：A
沙门菌属食物中毒致病性较强的病原菌是（）
A.肠炎、猪霍乱、鸭沙门菌
B.猪伤寒、鼠伤寒、肠炎沙门菌
C.猪伤寒、火鸡、鸭沙门菌
D.牛伤寒、肠炎沙门菌、鼠伤寒沙门菌
E.猪霍乱、鼠伤寒、肠炎沙门菌
— Ann is still unhappy today.
— It's all your fault. You ____ to her yesterday for your mindless mistake. [ ]
A. should apologize
B. should have apologized
C. shouldn't have apologized
D. must apologize
