参考答案:NO 答案解析:(London)第三段第三句“Nearly all of them start in London, and some never go out of that great city.”道明伦敦是每个
第9题: [单项选择]What is the agreement between South Sudan and Sudan about The talks between Sudan and South Sudan A. will finish three weeks later. B. was held three weeks ago. C. will restart at the end of August. D. will last till the end of August. 参考答案:C
第11题: [单项选择]以下主要用于麻醉前给药的M受体抑制剂是() A. 阿托品 B. 东莨菪碱 C. 山莨菪碱 D. 甲溴东莨菪碱 E. 托吡卡胺 参考答案:B 答案解析:东莨菪碱的外周作用与阿托品相似,但抑制腺体分泌、扩瞳和调节麻痹作用较强,对心血管作用则较弱。中枢作用与阿托品不同,以抑制为主,表现为镇静和催眠作用。临床主要用于麻醉前给药:东莨菪碱不仅具有较强的抑制腺