读一读，分一分。 1. eight 2. ear 3. Danny 4. tw

A housing bubble is an economic situation _____ occurs when house prices rise much too fast.

A．which

B．where

C．what

D．why

—Where is Sally?        

—_____. [ ]

A. She is fine  

B. She is my sister  

C. She doesn't know  

D. She is in her room.

病例对照研究中，选择偏倚不包括（）。

A.入院率偏倚

B.回忆偏倚

C.检出症候偏倚

D.无应答偏倚

E.错误分类偏倚

企业法人内部单位，只要是单独核算的，就可以申请开立基本存款账户。 ( )

滑动轴承适用于( )的场合。

A．冲速大

B．低速

C．高精度

D．重载

E．结构上要求剖分