【单选题】A helicopter is able to and land straight up or down.
【判断题】一、皮亚杰强调,幼儿在学习过程中“尝试错误”的重要性。
【单选题】–Take away your balls, they _____ the whole room. -Ok, Mum.
【单选题】Matter is anything____
A.
that take up space and have weight
B.
which take up space and have weight
C.
that takes up space and has weight
D.
those take up space and have weight
【判断题】只要是足够大容量的数据,就可以组成大数据。
【判断题】只要是足够大容量的数据,就可以组成大数据