如图,点P是以O为圆心,AB为直径的半圆上的动点,AB=2,设弦AP的长为x,△APO的面积为y,则下列图象中,能表示y与x的函数关系的图象大致是 ( )
A:
B:
C:
D:
碘酸钾(KIO3)中碘元素的化合价是( )
下列表格内容记录的是( )
时间
指挥者
规模
战绩
1940年8-12月
彭德怀
八路军投入105个团
毙伤日伪军25000多人
阅读下文,从所给的四个选项中选出一个最佳答案。
Lovely dog aged 5
I'm moving and can't take him with me. Very friendly with children.
I'd like to give it away (赠送) t o a good home.
Tel: 863196
Nice dresses on sale
150 dollars (美元) for adults (成人), 70 dollars for children, and you will pay 20 dollars less if you buy two dresses.
Address: Second Street
Tel: 569832
Welcome to HILO's Store
Take an old pair of shoes to us before September 30 and you will pay ten dollars less for any new pair of HILO shoes. Your old shoes will be sent to people in need.
Address: Stone street
Tel: 245591 245683