第21题: [单项选择]重症肌无力的辅助诊断方法中不包括下面哪项() A. 低频神经重复电刺激 B. 血清中AchRAb C. 肌肉活检 D. 腾喜龙或新斯的明试验 E. 胸部CT 参考答案:C
第22题: [单项选择]In this Open letter Vladkhleb explains to the people of Vladivostok that ______. A. they can no longer supply bread B. the price of bread will treble C. all reserves of bread-making ingredients have been depleted D. it will have to close down 参考答案:C 答案解析:[分析] 细节题。参看文章的第三段。