Walking and running are the oldest and newest, excellent _________ exercise for all ages and fitness levels.

A．bodies shaping

B．body shaping

C．bodies shaped

D．body’s shape

手足搐搦多见于下列哪种情况（）

A.老年动脉硬化

B.小脑疾患

C.肝性脑病

D.低钙血症和碱中毒

E.儿童的脑风湿病