客户机与客户机的连接称为登录（）

I just don’t understand ____that leads to so many teenagers becoming addicted to playing computer games.                                         

A．why it does

B．what it does

C．what it is

D．why it is

感蓝胶片的敏感光谱的峰值在（）

A.220nm

B.320nm

C.420nm

D.520nm

E.620nm

含挥发油及生物碱的果实类药材是

A．巴豆

B．补骨脂

C．吴茱萸

D．小茴香

E．枳壳

治疗脏腑病症可选用（）

A.原穴

B.荥穴

C.募穴

D.腧穴

E.下合穴

—What time will we go there?

—I’m not sure.It　　 the matter I have been getting along.

A．depends on

B．lies on

C．asks for

D．deals with