已知①有机物B是芳香烃的含氧衍生物，其相对分子质量为108，B中氧的质量分数为14.8%

②CH₃CH₂COOH+Cl₂ $\underset{△}{\overset{PC{l}_3}{\to }}$   +HCl

③G分子结构中含有3个六元环

根据以上信息，回答下列问题：

计算（﹣1）²⁰¹⁵+|﹣2|﹣（$\frac{1}{3}$）^﹣1的值为____ 

    In the past, most Chinese families have got one child in them. But recently, the government has relaxed the family planning policy, which means each couple are allowed to have two children. Would you like to have a brother or a sister who grows up together with you?

    Now please write a passage of about 80-120 words to introduce your opinion. The following points should be included:

    ⒈Is it necessary for a family to have more than one child? Give at least two reasons for it.

    ⒉What's the situation in your family? Are you the only child or not? List what makes you happy and unhappy.

    ⒊Give at least two suggestions to the families with two children.

阅读下列三则发生在我国的自然现象报道，探究生活常识

报道一：“新疆金秋降大雪”2016年10月21日，新疆沿天山一带普降中的大雪，新疆303省道路面积雪最深达40厘米。这场大雪对当地的交通和畜牧业造成一定影响。

报道二：“深秋气温创新高”2016年10月21日，杭州西湖白堤上许多游客纷纷撑起太阳伞，戴起遮阳镜。当天杭州最高气温攀升到30.7℃。当日嘉兴最高气温达27.3℃，比往年同期高5℃左右。

报道三：“禾城迎来入秋最凉一天”2016年10月2 3日，嘉兴受北方冷空气影响，迎来入秋以来最凉的一天。白天最高气温22℃，最低气温只有13℃。与前几天相比，下降了6-7度。

回答问题：