2017年3月5日，第十二届全国人民代表大会第五次会议在北京人民大会堂开幕，国务院总理***向大会作政府工作报告。关于全国人民代表大会与国务院的关系，下列说法正确的是（　）

已知如图所示，A，B，C是⊙O上三点，∠AOB=120°，C是$\stackrel{\wedge }{AB}$的中点，试判断四边形OACB形状，并说明理由．

下图是表示某植物叶肉细胞光合作用和呼吸作用的示意图．

据图回答下列问题：

根据短文内容，选择正确答案。

     Feeling sad? Go shopping, because it really can make you happy again.

Scientists interviewed hundreds of shoppers at shopping centers, and they asked them to keep diaries of their shopping trips. The people who were unhappy on their way into a shop, they all became happy after the shopping. This is called “retail therapy”.

     Shopping is good for your health. Walking between shops and carrying heavy shopping bags burns 385 calories(卡路里) a week for a British woman, according to a study. The study tested 10 shoppers—five men and five women. It found that women cover an average of nearly three miles during the 2.5 hours they spend walking in me shopping centers every week. But men spend just 50 minutes shopping and cover just 1.5 miles.

你想怎么样表示“ ”这三个数呢？