搜题请搜索小程序“爱下问搜题”
问题 单项选择题

下面（）项措施被用来防止电子邮件诈骗。

A.Prettygoodprivacy（PGP）

B.点对点协议

C.Microcom网络协议（Microcomnetworkingprotocol，MNP）

D.密码验证协议

答案

参考答案：A

填空题

请和Nick一起正确使用近期所学词汇来完成短文，表格内容和已给出的首字母可能对你们有用。

     boy girl 12 13 big strong tall thin slim helpful English American Chinese

     James √ √ √ √

      Kate √ √ √ √ √

      Chris √ √ √ √ √

     Hi! I'm Sammi. My family are in Beijing now. I'm in No. 10 Secondary School. I have t   1   new f  2   in

my new school. They are James, Kate and Chris. James is English. He is t  3   years old. He is t   4  . He is my

classmate. Kate is American. She is a nice girl. She is t   5   and s   6  . She is thirteen years old. Chris is b  7  

 and s   8  . He is Chinese. He is thirteen years old t   9  . They are all h  10  .

查看答案
单项选择题 A1型题

西红花的原植物科名和药用部位是（）

A.菊科，花丝

B.忍冬科，花药

C.豆科，子房

D.鸢尾科，柱头

E.禾本科，花柱
查看答案