沪深交易所市场于( )年开始对债券实行净价交易。
A.2000
B.2001
C.2002
D.2003
参考答案:C
解析: 沪深交易所市场于2002年开始对债券实行净价交易。
为了使锤造冠颈缘密合采取的措施,以下哪些是正确的()
A.邻面加蜡恢复外形
B.牙冠的最大周径降至龈边缘
C.代型修整时颈缘不准加蜡
D.代型颈缘线须向下延长0.5~1.0mm
E.正确恢复牙冠的邻接关系
30 — I’ve been told that the sports meeting might be ______.
— Yes, it all depends on the weather.
A put away B put out C put aside D put off