问题 单项选择题

纯铁在700℃时具有的晶格类型是()。

A.体心立方晶格

B.面心立方晶格

C.密排六方晶格

答案

参考答案:A

写作题

假设你是李华,在一个礼品网站为你的姐姐订购了一份生日礼物。礼物是一个标有姓名、生日及祝福语的有卡通动物形象的粉色杯子。收到礼物后你和姐姐都很满意。请给你的英国笔友Johnson发一封邮件,内容包括以下要点:

1.描述网购的礼物; 2.介绍网上支付及配送情况; 3.谈谈你对网上购物的看法。

注意:1.词数120--150左右;开头和结尾已给出,不计入总词数;

2.可适当增加细节,以使行文连贯。

3.支付宝安全控件 Alipay Security Control

Dear Johnson,

______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

____________________________________________________________________________

____________________________________________________________________________

____________________________________________________________________________

I’m looking forward to your early reply.

Yours sincerely,

Li Hua                                                 

多项选择题