【单选题】以下符合运动镜头编辑点的组接原则的是( )。
【判断题】只有正弦量才能用相量表示,非正弦量不可以。
【单选题】— What shall we do next Sunday? — We'd better _____ a party in the park. [ ]
【单选题】关于我国生物种类多样性的叙述中,错误的是( )
C.
我国脊椎动物中的鱼类、鸟类、和哺乳类的种类位于世界前列
D.
生物种类的多样性是指种与种之间的区别多样,而同种生物基因组成相同
【单选题】We'd better have our car _____ immediately, or we will be late for the movie.
【单选题】听力原文:A: Look! It's getting late and we'd better be leaving together. Have you got a car, Mr. Smith? B: No, thanks. There's a bus. The woman intends to______.
B.
go with the man by bus.
D.
check if he has a car.
【单选题】已知某序列 Z 变换的收敛域为 |z|>1 ,则该序列为 ( ) 。