【单选题】把债券未来的投资收益折算成现值,使之成为购买价格或初始投资额的贴现率是债券的( )。
【单选题】Waste paper shouldn't ______ everywhere. It's our duty to keep our classroom clean. [ ]
【单选题】红宝石红色、祖母绿绿色均由Cr致色,它们属于( )
【单选题】Which of the following will NOT be held for the event as celebration according to the clip?
A.
The local residents’ celebration in India.
B.
The local residents’ celebration in Hollywood
C.
The official governor’s ball.
D.
The Academy’s post-Oscars party.
【单选题】Which of the following is NOT the principle of the Kwanzaa celebration?
【判断题】abstract方法的声明必须同时实现。()
【单选题】Waste paper shouldn't _____ everywhere. It's our duty to keep our city clean. [ ]