由拍卖人宣布拍卖标的的起拍价,然后依次递减,直到有买者认为已经低到可以接受的价格买进为止。此种拍卖方式是()
A.增价拍卖
B.荷兰式拍卖
C.密封递价拍卖
D.网上拍卖
参考答案:B
ASCII is a 7-bit code used to represent numeric, alphabetic, and special printable characters. It also includes codes for control characters, which are
A. printable or displayable
B. not printable or displayable
C. not printable but displayable
D. printable but not displayable
诊断代码种类()。
A.最高优先级故障
B.主要故障
C.次要故障
D.低优先级故障