8 Researchers have shown that the shorter the index finger is, ____ the ring finger, ___ aggressive men are likely to be.

A compared with; more B comparing to; more C compared to; the more D comparing with, the more

枳壳具有的药理作用是（）

A．兴奋胃肠平滑肌 

B．抑制胃肠平滑肌 

C．既兴奋又抑制胃肠平滑肌 

D．小剂量兴奋，大剂量抑制 

E．先兴奋后抑制