直线l过抛物线y2=2x和y=2x2的焦点,则直线l的方程是 [ ]
A.2x+8y-1=0
B.2x+2y-1=0
C.x+4y-1=0
D.x+2y-1=0
答案:A
简述广告摄影布光的步骤()
A.加置辅助光
B.确定主光光位
C.附加装饰光
D.添加轮廓光
E.设置背景光
Master must ascertain that deck loads are stowed in such a manner as().
A.not to affect the vessel's stability and trim
B.to affect the vessel's stability
C.to affect the vessel's trim
D.to affect the vessel's atability or trim