【单选题】肉毒毒素致病机制是
C.
阻断上、下神经元之间正常抑制性介质的传递,导致肌肉痉挛
D.
抑制神经末梢释放乙酰胆碱,影响神经冲动的传递,导致肌肉迟缓型麻痹
E.
激活细胞内腺苷环化酶,使cAMP的水平增高,使粘膜细胞的分泌功能增强
【单选题】Tom had a headache, _____ he didn ’ t go to the party.
【单选题】Cathy didn ’ t go to Tom ’ s birthday party last night because she ______the baby for her sister until 9:30.
A.
must have looked after
B.
would have to look after
D.
should have looked after
【单选题】Tom had headache, ________ he didn ’ t go to the party.
【单选题】肉毒毒素致病机制是
C.
阻断上、下神经元之间正常抑制性介质的传递导致肌肉痉挛
D.
抑制神经末梢释放乙酰胆碱,影响神经冲动的传递,导致肌肉迟缓型麻痹
E.
激活细胞内腺苷酸环化酶,使cAMP的水平增高,使黏膜细胞的分泌功能增强
【单选题】颅内手术后,头部翻转过剧可引起的并发症有