Hesitating what to do,______________________A.so let’s not go outingB.the tour was cancelled C.but we should still take the tour D.we ... 全文

2011-01-04 22:21 来自版块 - 

单选Naturally I will come to you for advice whenever I feel I need _____ A.them B.one C.some... 全文

2011-01-04 22:14 来自版块 - 

直线点斜式方程可以写成y-y1=k(x-x1),也可以写成y-y1/x-x1=k,为什么书上说前者与后者所表示的方程是不一样的,后者的方程丢失了前者方程上的点(x1,y1)?

2010-12-20 00:35 来自版块 - 

怎样可以提高完形的准确率?为什么我只能达到13个左右?

2010-12-14 01:27 来自版块 - 

The global trend toward higher divorce rates has created more familes with fewer people

2010-12-05 22:49 来自版块 - 

怎样准确又快的区分核素与同位素?

2010-11-08 22:23 来自版块 - 

使奇函数f(x)=sin(2x+a)+根号3倍cos(2x+a)在闭区间(-45°,0°)上为减函数的角a的值? A.-60° B.-30° c.150° D.120° 为什么我算的是C,D都满足,而老师讲的只有D 要详细的解答过程。谢啦

2010-10-31 22:45 来自版块 - 

氯气在空气中为什么易液化?

2010-10-30 00:49 来自版块 - 


返回顶部