一次函数f(x)的图象过点A(0,3)和B(4,1),则f(x)的单调性为( )
A:增函数
B:减函数
C:先减后增
D:先增后减
找一找,100以内有哪些数是三个不同的质数的乘积。(从小到大填写)
印度高新技术产业区分布在( )
What ______ your dream home ________ ?
She is reading books, but the phone is ____ ( ring/ringing )