840÷8÷4=840÷(8÷4)______.
根据除法的性质知:840÷8÷4=840÷(8×4),
所以840÷8÷4=840÷(8÷4)错误.
故答案为:×.
My cousin has a large amount of money so that he can buy a house in the city center.
A.put away
B.put off
C.put out
D.put down
病变对侧偏身深浅感觉障碍,伴自发性疼痛及感觉过敏,其病变部位在()。
A.顶叶感觉皮层
B.内囊或基底核区
C.脑桥
D.中脑
E.丘脑