关于雌激素的描述,下列哪项错误A.排卵前达一峰值 B.黄体成熟时雌激素形成第二高峰 发布时间:2017-05-27 10:47 │ 来源:www.tikuol.com 题型:单项选择题 问题: 关于雌激素的描述,下列哪项错误A.排卵前达一峰值B.黄体成熟时雌激素形成第二高峰C.雌激素第二高峰低于第一高峰D.经期雌激素水平低于绝经后水平E.绝经后女性雌激素主要是雌酮
题型:单项选择题 阅读理解。Maria: I like broccoli and bananas. I don't like hamburgers or French fries. I have two eggsand a banana for breakfast. Bill: I like salad and chicken. I don't like ice cream. I have chicken and tomatoes for dinner. Bob: I like hamburgers and ice cream. I don't like tomatoes. I eat lunch at school. I have hamburgers and oranges for lunch. 1. Does Maria like broccoli? A. Yes, she does.B. No, she doesn't.C. Yes, I do. D. I don't know. 2. What does Bill have for dinner? A. Salad and chicken. B. Ice cream. C. Tomatoes and chicken. D. Hamburgers and oranges. 3. _________ eats two eggs and a banana for breakfast. A. Maria B. Bill C. Bob D. No one 4._________ likes ice cream, but _________ doesn't like it. A. Bob, Maria B. Bill, Bob C. Maria, Bill D. Bob, Bill 5. Does Bill have eggs or bananas for breakfast? A. Yes, he does. B. No, he doesn't. C. He doesn't eat eggs or bananas. D. We don't know. 查看答案
题型:单项选择题 单晶Cu(fcc)结构在室温时的位错滑移的临界分切应力τc=0.98MPa。若在室温时将单晶Cu试样做成拉伸样品,其拉伸轴平行[123]晶向,求引起该样品屈服所需的外加应力。 查看答案