“最小值”滤镜可以向外扩展图像的黑色区域并向内收缩____区域,从而产生模糊、暗化般的效果。
They were both born _____ March,1981.
A. in
B. at
C. on
D. since
Mrs Brown came to China ______ 1996.
A. on
B. of
C. to
D. in
He often goes _____ school _____six thirty _____ the morning.
A. for; to; in
B. to; at; in
C. to; for; at
D. for; at; to
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