----It’s said that an American teacher will teach us English this year.

----Wow !________!We can practice our spoken English better.

A．What exciting news

B．How exciting news

C． What an exciting news

D．How excited the news is

任何一项工程都有特定的用途、功能、规模，这是指工程造价的（）。

A．动态性

B．层次性

C．个别性

D．兼容性