美国最有影响的报纸是()
参考答案:纽约时报
有一光源发出的光垂直射到平面镜上,若将平面镜转动45°角,反射光线与入射光线的夹角为______.
Many people watched the ___ TV broadcast of football matches.
A.live
B.alive
C.living
D.lively