（）作为一项就业技能，它不可再拆分，不划分等级。A、初级考核能力 B、专项职业能力 C、

There ______ a number of people in the airport. The number of people who travel by plane ______ larger

than before. [ ]

A．are, are

B．are, is

C．is, is

D．is, are

慢性中毒主要损害泌尿系统的毒物是（）

A.联苯胺

B.苯

C.丙烯酰胺

D.氯甲醚

E.二甲基甲酰胺

They gave me so much help, without ____ I couldn't have succeeded last year．

A．them

B．which

C．it

D．that

中风的病位主要在心脑，与何脏密切相关 ( )

A．肝、肾
B．心、肾
C．肝、胆
D．心、肝
E．脾、肾

体式较为完整的甲骨文书出现在______

A．两千多年前
B．三千多年前
C．四千多年前
D．五千多年前