动脉血和静脉血的区分标准是

句型转换
(1)Both he and I are from Beijing.,（改为否定句）
____ he____  I am from Beijing
(2)The box is too big for me to carry.(同义句转换)
The box is____  big____  I can’t carry it.
(3)I like this CD because I can take it to the party.（对划线部分提问）
____ do you ____  CD?
(4)My mother allows me to choose my own clothes.( 同义句转换)
I ____  ____   to choose my own clothes
(5)I spent one hundred Yuan in buying the present.（同义句转换）
The present____  ____ one hundred Yuan