下列自然资源中属于非可再生资源的组合,正确的是( )
①煤 ②水资源 ③土地资源 ④天然气
A:①②
B:②③
C:①③
D:①④
如图,折叠长方形的一边AD,使点D落在BC边的点F处,若AB=8cm,BC=10cm,则EF的长为( )
下列哪一项不属于细胞膜的功能( )
在初中即将毕业之际, 请你以张明的名义给英国笔友Brian写一封感谢信, 要点提示如下:
three years ago
a new comer, have no friends and feel lonely…..
During three years
Brain have written many letters to help you in different ways:
Encourage you to make more friends.
Tell you the ways how to learn English well
…….
You have changed a lot, for example, ……..
invite him to come to Hangzhou to pay a visit…….
要求:
①词数:80--100个
②信的开头和结尾已给出, 不计入总词数
③要点齐全, 行文连贯, 可适当发挥
Dear Brian,
How time flies! We have been friends for three years. I'm writing to thank you for your help!
Three years ago, ……
Hope to see you soon!
Yours,
Zhang Ming