信息编写的类型包括动态型信息、______信息、经验型信息和建议型信息。
A.图表型
B.问题型
C.调查型
D.咨询型
参考答案:B
I would rather ________the football match last night with my friends. Otherwise,I would have finished my paperwork by now.
A.not have watched
B.not watch
C.hadn't watched
D.haven't watched
表示空间分辨率的单位是
A.半值全宽B.对比度指数C.百分线对数(LP%)D.平方厘米线对数(LP/cm2)E.厘米线对数(LP/cm)