具有发散、行气、行血作用的药物是（）。

A.辛味

B.甘味

C.酸味

D.苦味

E.咸味

---- Do you know Tom, ______ father is an engineer?

---- Yes, quite well. He ______ be the first to offer me help when I met with problems.

A．the; would

B．which; used to

C．that; used to

D．whose; used to