用户在利用客户端邮件应用程序从邮件服务器接收邮件时通常使用的协议是______。A．

How are the kids spending their childhood? I can’t help recalling（回忆）that there was a time _______ we played happily and freely in the outside.

A．that

B．which

C．when

D．不填

请先阅读李雷给王老师的来信，然后帮助王老师给李雷回信。

Dear Miss Wang,

I live in a boarding school and I go home every weekend. But when I came back to school this Monday, I found my wallet with all my money and identity cards had been stolen. I haven’t told my parents because they will be angry. Now I have to borrow money from my classmates .I’m so sad that I cannot concentrate (集中注意力) on my studies. Can you help me?

Yours,

Li Lei

注意：1. 给李雷至少两条建议；

2. 开头和结尾已经给出，不计入总词数；

3. 词数为80词左右。

Dear Li Lei,

I am really sorry that you lost your wallet.______________________________________

________________________________________________________________________

________________________________________________________________________

________________________________________________________________________

________________________________________________________________________

I hope you will find these ideas useful.

Yours,

Miss Wang

墩台混凝土宜水平分层浇筑，每次浇筑高度宜为（）m。

A.0.5～1.0

B.1.5～2.0

C.2.5～3.0

D.1.5～3.0

在《广东电网公司变电站自动化管理规定》中规定，以下属于变电站自动化设备全部检验项目的是（）。

A.测控装置网络通信功能检查

B.后台主机与各测控、保护装置的通信和网络功能的检验

C.系统数据库的正确性及完备性的检查

D.保护管理机通信插件、通信接口功能检查

E.双机双通道切换装置的切换机制功能检查

亚慢性毒性作用