我们说自己是“炎黄子孙”，是因为（    ）

2017年两会中，我国就《中华人民共和国民法总则（草案）》共作了126处修改。这说明（  ）

根据图中提供的信息，回答以下问题。

根据列联表数据，有____的把握（填写相应的百分比）认为患慢性气管炎与吸烟有关．

附：

$K^2=\frac{n{\left(ad-bc\right)}^2}{\left(a+b\right)\left(c+d\right)\left(a+c\right)\left(b+d\right)}$ ．

    When you are thirsty, you can drink some green tea. It tastes good and it's very healthy. The Chinese ____ （know）about the benefits of green tea since ancient times, and they use ____ to treat everything from headaches to depression. They have ____（actual）been using green tea as a medicine for over 4,000 years.

    Nowadays, there is scientific evidence of the health benefits of green tea. According to one study ____ （publish）in a cancer research journal, drinking green tea ____（reduce）the risk of some types of cancer ____ nearly sixty percent. USA researchers have also found that green tea may prevent the____（grow）of cancer cells. There is also new evidence ____green tea can help to destroy bacteria in our bodies. It is especially effective at getting rid of the bacteria on your ____（tooth）and keep them healthy!

    According to the Chinese proverb, “It is ____（good）to go without food for three days than without tea for one.” So, in brief, you should definitely try a cup of green tea. It seems that it can only do you good.