在计算机色彩里,要提高一个深红色的明度,应该()
A.增加深红色
B.增加白色
C.不可能
D.减少黑色
参考答案:D
______ she was no more than twenty-two, she was already a highly successful business- woman.[ ]
A. Though
B. Once
C. Because
D. Since
国际贸易货款结算中,使用票据有()。
A.汇票
B.本票
C.支票
D.发票