A:春天花朵掰成花瓣
B:夏天粮食酿成美酒
C:秋天水果榨成果汁
D:冬天冰砖凿成冰雕
59+x=56
x+18=34
x−38=58
x= ____
关于地震的叙述正确的是( )
⑴My father is practising English.____ A.
⑵I'm going to study Geography in middle school.____ B.
⑶He is going to ride his bike to school.____ C.
⑷My friend Sam is going back to the UK.____ D.
⑸It's time to have lunch.____ E.
已知平面向量α,β,|α|=1,|β|=2,α⊥(α﹣2β),则|2a+β|的值是____.