拍摄食品布光时,辅助光要()。
A.硬
B.软
C.亮
D.强
参考答案:B
衡量测验包含的试题难易程度的指标是()。
A.效度
B.难度
C.信度
D.区分度
—Who is the girl in a hat?
—_____. [ ]
A. He is Sue
B. They are Sue
C. It's a hat
D. It's Sue