关于股票交易特别处理，下列四个表述中，正确的是( )。A．股票实施特别处理后，涨跌

—Would you like to go hiking with us this Sunday?

—I'd like to, but I'll have _______ to do. [ ]

A. special something

B. something special

C. anything special

D. special anything

下列鉴别方法可行的是（  ）

A．用氨水鉴别Al³⁺、Mg²⁺和Ag⁺

B．用Ba(NO₃)₂溶液鉴别Cl^－、SO和CO

C．用互滴的方法鉴别Na₂CO₃溶液和NaHSO₄溶液

D．用盐酸酸化的KMnO₄溶液鉴别Fe²⁺和Fe³⁺

— How could you ________ my sister so easily in the crowd?

— Because she stood out in her red dress.

A．pick up

B．pick out

C．take up

D．take out

下列不属于框架式展架连接件部件的是（）。

A、钢制夹扣

B、夹卡

C、螺钉

D、多向插接头

的1m水头相当于（）MPa的压力。

A.0.01；

B.0.1；

C.1.0；

D.10。