答案:B
The boy was observed __________ basketball at eight o’clock yesterday.
A.playing
B.play
C.to play
D.having played
动眼神经副核发出纤维支配
A.泪腺B.上睑提肌C.眼轮匝肌D.瞳孔括约肌E.瞳孔开大肌