（）正在成为世界性问题，引起世界各国的高度重视。_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题填空题

（）正在成为世界性问题，引起世界各国的高度重视。

答案

参考答案：环境问题

完形填空

As Christmas is coming, there are presents to be bought, cards to be sent, and rooms to be cleaned. Parents are __1__ with difficult jobs of hiding presents from curious young children. If the gifts are large, this is sometimes a real problem. On Christmas Eve, young children find the excitement almost unbearable. They are torn between the wish to go to bed early so that Father Christmas will bring their presents quickly and the wish to __2__ up late so that they will not miss the fun. The wish for gifts usually proves stronger. But though children go to bed early, they often lie __3__ for a long time, hoping to get a short look at Father Christmas.
Last Christmas, my wife and I __4__ hid a few large presents in the storeroom. I fear the moment when my son, Jimmy, would ask me where that new bike had come from, but __5__ he did not see it.
On Christmas Eve, __6__ took the children hours to go to sleep. It must have been nearly midnight when my wife and I went quietly into their room and began __7__ stockings. Then I pushed in the bike I bought for Jimmy and left it beside the Christmas tree. We knew we would not get much sleep that night, for the children were sure to get up early. At about five o’clock the next morning, we were __8__ by loud sounds coming from the children’s room—they were shouting excitedly! __9__ I had time to get out of bed, young Jimmy came riding into the room on his new bike, and his sister, Mary, followed closed behind pushing her new baby carriage. Even the baby arrived. He moved on the hands and knees into the room dragging a large balloon behind him. Suddenly it burst. That woke us up __10__. The day had really begun with a band（巨响）！

D．successfully

D．fortunately

多项选择题

桩的配筋长度应穿过（）。

A、淤泥

B、淤泥质土

C、液化土层

D、砂土层