As we know, it's very polite to talk to each other. What would you say if you met a girl who is very heavy? [ ]

A. You used to be thin, didn't you?

B. You are too heavy.

C. You must lose your weight.

D. You are still heavier than me.

近曲管回吸收HCO障碍（）

A.原发性RTAⅠ型

B.原发性RTAⅡ型

C.原发性RTAⅢ型

D.原发性RTAⅣ型

E.原发性RTAⅤ型