作业帮奥英难题,1.What number comes next in the following series?9,12,21,48,...A.84 B.98 C.129 D.2162.Mr Brown tells Tom __he must do.A.what B.if C.that what D.where3.I have two minutes in which to catch a train,and two miles to go.If I go the first mil
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奥英难题,1.What number comes next in the following series?9,12,21,48,...A.84 B.98 C.129 D.2162.Mr Brown tells Tom __he must do.A.what B.if C.that what D.where3.I have two minutes in which to catch a train,and two miles to go.If I go the first mil
奥英难题,
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
THANK YOU VERY MUCH!
可是第3题的答案是选C的.
奥英难题,1.What number comes next in the following series?9,12,21,48,...A.84 B.98 C.129 D.2162.Mr Brown tells Tom __he must do.A.what B.if C.that what D.where3.I have two minutes in which to catch a train,and two miles to go.If I go the first mil
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.