用配方法将方程x²-6x+7=0化为（x+m）²=n的形式为____ 

    It is sad but true that people die in earthquakes____falling furniture and bricks. Earthquake____(safe) is very important and there is more to it____just keeping buildings from falling down. So if your home is in an earthquake area, you should prepare carefully before the earthquake____(come).

    First, make sure you buy a house which is earthquake safe. All pipes should be fixed to the walls and all walls should be____(especial) thick and strong. Make sure the building has no____(break) windows and is well repaired.

    Second, look at the objects in your house. Objects____computers, televisions and lamps can be tied to tables or____(stick) to them so they won't easily move around. The cupboards,____many small things are stored, should have strong doors. Always remember,____(good) safe than sorry.

蝶恋花①

【宋】陆游

桐叶晨飘蛩夜语。旅思秋光，黯黯长安路。忽记横戈盘马处，散关清渭应如故。

江海轻舟今已具。一卷兵书，叹息无人付。早信此生终不遇，当年悔草《长杨赋》②。

【注】①这首词是陆游晚年被罢官后所作。②《长杨赋》：汉代扬雄为讽谏汉成帝游幸长杨宫而作。