【单选题】It's our duty to trees and flowers. [ ]
【单选题】Waste paper shouldn't ______ everywhere. It's our duty to keep our classroom clean. [ ]
【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.
【判断题】债券的持有期收益率是把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。
【判断题】声明为abstract类的方法必须同时进行声明和实例化。()
【单选题】On which holiday pumpkins are a very important part of 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. [ ]