小婉家今年小麦产量是2500千克,比去年增产500千克,增产了百分之几?
500÷(2500-500),
=500÷2000,
=25%;
答:增产了25%.
假设你叫李华,现在是重点高中第一中学的一名新生。请根据以下提示,给你初中的英语老师王老师写一封信,表达对他的感谢和尊敬。
词数120左右;文章的开头和结尾已经给出,不计入总词数。
Dear Mr. Wang,
How is everything going?
I’m very excited to write to express my thanks to you. I am now studying in No. 1 Senior School, which I have been dreaming of. _____________________________________________
Yours sincerely
Li Hua
TD一SCDMA网络中,会话类业务包括().
A、视频流
B、音频流
C、语音电话
D、视频电话