选择题： is known to all, smoking is harm

题目内容：

________ is known to all, smoking is harm _________ our health.( )(本题4.0分)
A、 As, for
B、 As, to
C、 It, for
D、 It, to

参考答案：

25.{x1+x2-3x3-x4=1,3x1-x2-3x3+4x4=4,x1+5x2-9x3_8x4

25.{x1+x2-3x3-x4=1,3x1-x2-3x3+4x4=4,x1+5x2-9x3_8x4=0

分类：川北医学院-英语2 题型：选择题

下列不属于屋面防水方法的是（）。(本题3.0分) A、卷材屋面防水 B、油膏嵌缝涂料屋面防水 C、细石混凝土刚性屋面防水 D、屋面排水

分类：川北医学院-英语2 题型：选择题

________ beautiful she is.( )(本题4.0分) A、 Who B、 What C、 How D、 No matter

分类：川北医学院-英语2 题型：选择题

Mary ________ show us her new dictionary . ( )(本题4.0分) A、 has asked to B、 was as

分类：川北医学院-英语2 题型：选择题

As his wife was dismissed from her company last month, the news that he might al

分类：川北医学院-英语2 题型：选择题