当设计深度不够，只有设备出厂价而无详细规格、重量时，安装费可按占( )计算。 A．

-In some countries, people there    swans       a symbol of good luck.          

-Really? It's my first time to hear that.        [ ]

A. look; as            

B. think; for      

C. regard; as      

D. consider; for

Believe it or not ,our house isn’t ______ their new house bought last month.

A．half as large as

B．as half large as

C．as large as half

D．large as half as

四川省工程资料共分为（）类。

A、1

B、2

C、3

D、4

发奋:成功

A．啤酒:粮食
B．饮料:矿泉水
C．动物:猴子
D．自满:失败

平静呼吸时，参与呼吸运动的肌肉是（）

A.肋间外肌

B.肋间内肌

C.膈肌和胸大肌

D.膈肌和肋间外肌

E.肋间外肌和肋间内肌