若复数是虚数单位)是纯虚数,则=                     (

若复数是虚数单位)是纯虚数,=                     (  )

A            B              C-1             D1

答案

 D    

相关题目

— What does she look like?      — She     long straight black hai
— What does she look like?      — She     long straight black hair.  A. is     B. has     C. have    D. does
The girl in red is ___ her father than like her mother. A. much liker   B. a g
The girl in red is ___ her father than like her mother. A. much liker   B. a great deal like  C. much more like   D. a lot like
芬必得是一种解热、镇痛及抗生素类药物的商品名,其主要
芬必得是一种解热、镇痛及抗生素类药物的商品名,其主要成分是化合物对异丁基-α-甲基苯乙酸,药名为布洛芬,它有多种合成路线,下面是一种合成
It was ________ that the PLA men got to the earth-strike area.    A. midnight
It was ________ that the PLA men got to the earth-strike area.    A. midnight                    B. at midnight        C. until                      
晚清人李慈铭在《越缦堂日记》中有这样一段话:“二十七
晚清人李慈铭在《越缦堂日记》中有这样一段话:“二十七日戊子记:闻圆明园为夷人劫掠后,奸民乘之,攘夺余物,至挽车以运之,上方珍秘,散无
某班级有50名学生,现要采取系统抽样的方法在这50名学生中
某班级有50名学生,现要采取系统抽样的方法在这50名学生中抽出10名学生,将这50名学生随机编号1—50号,并分组,第一组1—5号,第二组6—10号,……
阅读下列语段,按要求选出符合要求的一项: 《纽约时报》
阅读下列语段,按要求选出符合要求的一项: 《纽约时报》是美国最有影响的报纸。该报的版面在传统上比较严肃,新闻照片不多,并且尺寸也小。近
The book seems to have been _____ from various books and articles. A. pieced tog
The book seems to have been _____ from various books and articles. A. pieced together    B. taken off  C. broken away        D. pulled out

最新题目