-225°化为弧度为（ ） 225°=-225×π180弧度=-5π4弧度．故选：C．
《高一英语作文》求助…假如你是李华.在一个英文论坛上，你看到一个名叫Mike You can let your parents know that you can take care of yourself.you should be independent.you need to understand your parents.they don\"t allow you to go there alone，becaue they are worried.
1到9中间选6个数字组1000 （6+4）*（3+7）*2*5=1000
