【简答题】4=______÷20=20().5:4=______÷20= 20 ( ) .
【单选题】听力原文:M: I would like two tickets for the 9 o'clock show this evening. W: I'm sorry, Sir. They are sold out. But we have a few left for tomorrow. What do we learn from this conversation?
A.
The man wants to attend tomorrow's show.
B.
There aren't any tickets left for tonight's show.
C.
There aren't any tickets left for tomorrow's show.
D.
The man doesn't want to attend tomorrow's show.
【多选题】下面关于接口和抽象的说法,正确的有
C.
一个抽象为只能继承一个父类,但可以实现多个接口
D.
类实现接口的使用的关键字是implements
【简答题】______=______÷20=4()=0.8=______%20:______=______÷20= 4 () =0.8=______%
【单选题】1946 年 6 月底,国民党军以进攻 ( ) 为起点,挑起了全国性内战。
【单选题】特殊变星中的Wolf-Rayer变星的光谱中全部是什么线?