______Olympic torch has reportedly stayed alight throughout _____varied extreme weather conditions in a German testing center.

A．不填; the

B．The; 不填

C．不填; an

D．The; a

患者四肢瘫痪，但无颅神经障碍其病变在（）

A.延髓

B.颈髓

C.小脑

D.桥脑

E.中脑