人本管理的核心是（）。 A.以人为本 B.效率第一 C.用户至上 D.质量第一

牙周组织和牙髓组织的交通途径不包括（）。

A.根尖孔

B.侧支根管

C.副根管

D.牙本质小管

E.牙周膜

( )是国家重要的政务活动场所，两次成为全国人大代表驻地。

A．北京饭店

B．贵宾楼

C．钓鱼台国宾馆

D．京西宾馆

听句子，缩写原文。（）

A．Supermarkets in the inner city and the suburbs are usually owned by the same company.

B．Products in grocery stores are more expensive than those in supermarkets.

C．There is a price difference for the same product even in shops run by the same company.

D．People prefer to shop in supermarkets, which are mostly located in the suburbs, with free parking space.

追索债务是指通过暴力或暴力威胁手段强行向债务人索讨债务的行为

少量烟气（未进入净化系统）通过（）排入大气。