Crying marriage? Surprising, isn't it? Actually, the custom of crying marriage____ (exist) a long time ago in many areas of Southwest China's Sichuan Province, and remained in fashion until the end of the Qing Dynasty. Though not so popular ____before, the custom is still observed by people in many places, especially Tujia people,____ view it as a necessity of the marriage procedure.

    It is very much the same in different____ (place) of the province. According to elderly people, every bride had to cry at the wedding. Otherwise____ bride's neighbors would look down upon her as a ____(poor) educated girl and she would become the laughingstock of the village. In fact, there were cases in which the bride ____ (beat) by her mother for not crying at the wedding ceremony.

    In a word, crying at the wedding is a way to set off the____ (happy) of the wadding through falsely sorrowful words. However, in the ____ (arrange) marriages of the old days of China9 there were indeed quite a lot of brides who cried over their ____ (disappoint) marriage and even their unhappy life.

设变量$x,y$满足约束条件$\left\{\begin{array}{c}y\ge 0\\ x-y+1\ge 0\\ x+y-3\le 0\end{array}\right.$$\begin{array}{c}\mathrm{}\\ \mathrm{}\mathrm{}\\ \mathrm{}\mathrm{}\end{array}$，则$z=2x+y$的最大值为  (    )

据统计，2016年我国电信网络诈骗案就有59．9万起，经济损失约200亿元。电信网络诈骗巳经成为社会公害，引起民众公愤。为此，政府应该（    ）

①维护社会长治久安，依法打击电信诈骗活动

②组织经济建设，对电信网络运营商加强监管

③加强社会建设，完善电信基础设施建设

④坚持公正司法，保护人民群众的生命财产安全

下列句子中划线的词语使用恰当的一项是（  ）