下列局麻药中毒性最大的药是（）
A.利多卡因
B.普鲁卡因
C.依替卡因
D.丁卡因
E.布比卡因
参考答案：D
-What a rich dinner you’re preparing, mum!
-I’ve been told that your aunt as well as her three friends _______to visit us.[ ]
A. had come
B. were coming
C. is coming
D. are coming
砖砌体墙体轴线位置允许偏差范围为（）㎜。
