UC知道奥英难题，高手请进！
来源：百度知道 编辑：UC知道 时间：2024/04/25 12:04:47
1.What number comes next in the following series?9,12,21,48,...
A.84 B.98 C.129 D.216
2.Mr Brown tells Tom __he must do.
A.what B.if C.that what D.where
3.I have two minutes in which to catch a train, and two miles to go. If I go the first mile at the rate of 30 miles per hour, at what rate must I go the second mile in order to catch the train?
A.30m;p.h B.45m;p.h C.60m;p.h D.90m;p.h
最好是有详细的解释.
THANK YOU VERY MUCH!!!!!
十分感谢!!!
可是第3题的答案是选C的.答案不会错的!
A.84 B.98 C.129 D.216
2.Mr Brown tells Tom __he must do.
A.what B.if C.that what D.where
3.I have two minutes in which to catch a train, and two miles to go. If I go the first mile at the rate of 30 miles per hour, at what rate must I go the second mile in order to catch the train?
A.30m;p.h B.45m;p.h C.60m;p.h D.90m;p.h
最好是有详细的解释.
THANK YOU VERY MUCH!!!!!
十分感谢!!!
可是第3题的答案是选C的.答案不会错的!
第一题 c 9+3=12 12+9=21 21+27=48 每次所加的数依次是3的n次方， n可为1，2，3等
第二题 选A 此为宾语从句．
第三题 选A 前一分钟用的速度应和后一分钟用的
是一样的。
1 c 9 9+3 12+9 21+27 48+81=129
2 a tell sb sth 宾语从句
3 第一mile 用时1/30h=2min,光速....
1,12-9=3 21-12=9 48-21=27 那么 x-48=81 可得x=129
2，应该是what
3，no way to catch，next turn will be
同意以上观点哎~
两位都答地很全了~
同上，没什么答的