--- Mom, how funny that girl looks!

--- Don’t _______ others. It’s not polite.

A．make fur of

B．think of

C．look for

D．take part in

鉴别心源性哮喘和支气管哮喘最有意义的是（）

A.端坐呼吸

B.血中BNP含量

C.干湿性啰音的多少

D.夜间呼吸困难

E.是否是受凉感冒后出现