【单选题】tumble
B.
fall down quickly and suddenly
C.
climb up quickly and suddenly
D.
force sb. to leave a place
【单选题】The farmer grows various kinds of crops, __________wheat, cotton and rice.
【简答题】Students read various kinds of books in it.
【单选题】tumble
A.
to be trapped in difficulty
B.
to fall quickly and without control
D.
to become less in number or smaller
【单选题】By piecing together all kinds of evidence collected by various expeditions, the researchers believe the Mayas to be Indians, whose ancestors had come from Asia.
【单选题】如果用户想要批量更改数据表中的某个值,那么可以使用的查询是