导致神经肌肉接头后膜受体蛋白发生变化和离子通道开放必须有几个ɑ蛋白亚基与激动剂分子相结合()
A.1个
B.2个
C.3个
D.4个
E.6个
参考答案:B
关于皮肌炎的一般治疗,下列哪项说法不正确()。
A.急性期要加强功能锻炼
B.避免日晒
C.积极排查恶性肿瘤
D.加强营养
E.慢性期加强功能锻炼
Woman: Come on, we’re almost there. I’ll race you to the top of the hill. Man: I’m so out of shape. I might have to crawl the rest of the way. Question: What can be inferred about the man
A. He’s tired.B. He lost the race.C. He has already been to the top of the hill.D. He prefers doing exercise indoors.