平脉的特点是有胃、神、根，有根是指
A．不浮不沉
B．不快不慢
C．节律匀齐
D．和缓有力
E．尺部沉取应指有力
参考答案：E
She is the first person in her family to __________ this kind of social activities.
A．come near to
B．go on with
C．keep up with
D．take part in
催化裂化原料是（）。
A、常压重柴
B、常底重油
C、减压蜡油
D、减压渣油
