题目内容
An A4 sized panel (太阳能板) put onto the back of a jacket costs __________ US$15. It could __________ a cellphone during a summer walk.
A. at most; work B. at least; control C. at least; fuel D. at most; charge
D |
|
|
题目内容
An A4 sized panel (太阳能板) put onto the back of a jacket costs __________ US$15. It could __________ a cellphone during a summer walk.
A. at most; work B. at least; control C. at least; fuel D. at most; charge
D |
|
|