如果函数y=f(x)的图像与函数y=3-2x的图像关于坐标原点对称,则y=f(x)的表达式为 [ ]
A、y=2x-3
B、y=2x+3
C、y=-2x+3
D、y=-2x-3
答案:D
(2014·吉林模拟)—Have you finished the report?
—Oh,sorry.It was so noisy in the office that I couldn’t________down to write anything.
A.settle
B.put
C.sit
D.lie
演讲者的态势语言是演讲中不可缺少的直观性因素。