题目

In China, all the students work hard at school _________ going to university for higher education in the future. .w.^w.k.&s.5*u.c.#om.    A. in the habit of          B. in the hope of    C. in search of            D. in honor of   答案：B考查介词短语的用法.句意：在中国，所有的学生在校努力学习希望将来上大学.in the habit of 以...的习惯；in the hope of抱住...的希望；in search of 寻找；in honor of对...的尊敬；用来...纪念....  已知m是整数且-60＜m＜-30，关于x、y的二元一次方程组有整数解，则m=________，x2+y=________．