Lucy was _________ excited _________say anything when she heard the good news.

A．so; that

B．so; to

C．too; to

D．such; to

水环式真空泵启动前需向循环水箱内注水，水位应（）

A.略高于进水管

B.略高于出水管

C.略高于泵轴中心线

D.略低于泵轴中心线