自身免疫性重症肌无力和先天性肌无力综合征的区别在于（）。 A.是否血清出现抗乙酰胆碱
题型：单项选择题 A1/A2型题
问题：
自身免疫性重症肌无力和先天性肌无力综合征的区别在于（）。
A.是否血清出现抗乙酰胆碱受体，抗体升高
B.是否对抗胆碱酯酶药物有效
C.是否肌电图低频重频剌激有效
D.是否出现肌疲劳现象
E.是否新斯的明试验阳性
题型：单项选择题 A1/A2型题
单词拼写根据所给首字母或中文写出单词（共10小题；每小题0.5分，满分5分）
71. Your v___________ is too small; you need to learn more words.
72. 2010 Shanghai World Expo needs a good many v________ to do the work for free.
73. The word “not” are p differently in the UK and the USA.
74. Both Pompeii and Loulan became lost c__________ about 2,000 years ago.
75.The old couple have decided to a________ a boy and a girl from Yushu though they have three daughters and two sons of their own .
76.He has a good sense of _____________
_____ (方向).
77. Red is the ____ (象征) of revolution (革命)
78. ________ ( 不幸地)，he got injured in the football match.
79. It is a pity that so many buildings were ___________(毁坏) in the big fire.
80.Your performance in the driving test didn’t reach the required _______ (标准)----- in
other words , you failed