找出适合的答句。( )1. Good morning. ( )2. Where 发布时间:2017-05-03 13:11 │ 来源:www.tikuol.com 题型:补全对话,情景问答 问题: 找出适合的答句。( )1. Good morning. ( )2. Where are you from? ( )3. I'm sorry. ( )4. Goodbye. ( )5. Happy Women’s day! ( )6. Nice to see you again! a. I'm from China. b. It's OK. c. Goodbye. d. Nice to see you, too. e. Good morning. f. Thank you.
题型:补全对话,情景问答 某药物研究中心为研究减肥药的效果,将40只体重接近的雄性大白鼠随机分为4组,分别给予高剂量、中剂量、低剂量减肥药和空白对照4种处理方法,上述资料所用的设计方法为()A.析因设计B.随机区组设计C.交叉设计D.完全随机设计E.序贯试验 查看答案