只有动物才能呼吸，植物不能呼吸．______．

胸痹虚证与下列哪些脏腑功能失调有关（）

A.肝

B.心

C.脾

D.肺

E.肾

藏族人可以食用的肉是（）。

A.马

B.鸡

C.廘

D.驴

An analyst does research about margin purchase of stocks. An investor purchased 100 shares of a stock selling at $ 60 per share. The investor borrowed the maximum amount allowed by the initial margin requirement of 60 percent. If the stock price increases to $70 per share, the investor's return before commission and interest on the loan is closest to:

A. 16.7%
B. 27.8%
C. 41.7%

液压传动是借助于（）介质来传递能量和运动。

A、气体

B、流体

C、油液

D、离子

请写出8个码分多址的特点。