紫外线的红斑反应最强的波长是（）。 A.254nm B.280nm C.297nm 发布时间：2017-05-02 01:17 │ 来源：www.tikuol.com 题型：单项选择题 A1/A2型题 问题： 紫外线的红斑反应最强的波长是（）。A.254nmB.280nmC.297nmD.302nmE.313nm
题型：单项选择题 A1/A2型题 选择方框中的单词补全短文，有两个多余。next is my are and some Kate's Hello! This is (1)________ room. In my room there is a bed, a desk (2)________ a chair. My bed is (3)__________ to the desk. My shoes and soccer ball (4)_________ under the bed. There are (5)_________pictures on the wall. They're very nice. Oh, there is a clock and a map on the wall, too. 查看答案
题型：单项选择题 A1/A2型题 下列关于加权平均法的表述中正确的是（）。A.发出材料的单价与购进材料的单价相等B.发出材料的单价与结存材料的单价相等C.结存材料的单价与购进材料的单价相等D.结存材料的单价与最后一批购入材料的单价相等 查看答案
题型：单项选择题 A1/A2型题 How were Frank and I connected()A.My grandmother and his grandmother were sisters.B.We were first cousins once removed.C.We were second cousins once removed.D.My great-grandmother and his great-grandmother were sisters. 查看答案
题型：单项选择题 A1/A2型题 下列说法错误的一项是：（）。A.具有较高提前赎回可能性的债券具有较高的票面利率，其内在价值较低B.低利附息债券比高利附息债券的内在价值要高。C.流通性好的债券比流通性差的债券具有较高的内在价值D.信用越低的债券，投资者要求的收益率越高，债券的内在价值就越高 查看答案