A. To Colorado. B. To Arizona. C. To the Nile River. D. To the Museum of Natural History. 参考答案:B 答案解析:[听力原文]4-7 M: It's good to see you back. How was your trip to Arizona Did you see the Grand Canyo
第22题: [单项选择]新鲜冰冻血浆抽检用于血浆蛋白含量测定的袋数是()。 A. 当日库存数的1% B. 当日库存数的5% C. 当日库存数的1%~5% D. 4袋/月 E. 10袋/月 参考答案:D
第23题: [单项选择]Britain and America signed the Treaty of Paris in ______ which
recognized the independence of the United States.
A. 1776 B. 1801 C. 1783 D. 1778 参考答案:C 答案解析:[解析] 1783年9月签订了《巴黎条约》,英国承认美国独立。