数码相机用(),多数采用旁轴取景器,缺点是取景器面积小,还存在视差。
A.框式取景器r
B.毛玻璃取景器
C.光学取景器
D.LCD液晶取景器
参考答案:C
If the question _______ incorrectly, _______ question will be given to you. [ ]
A. is answered, other
B. answers, other
C. is answered, another
D. answers, anothe
为什么IS曲线的斜率是负的,而LM曲线的斜率是正的?