7.
函数y1=|x|,y2=$\frac{1}{3}$x+$\frac{4}{3}$.当y1<y2时,x的范围是( )
| A. | x<-1 | B. | -1<x<2 | C. | x<-1或x>2 | D. | x>2 |
6.计算22+22+22+22的结果是( )
0 309009 309017 309023 309027 309033 309035 309039 309045 309047 309053 309059 309063 309065 309069 309075 309077 309083 309087 309089 309093 309095 309099 309101 309103 309104 309105 309107 309108 309109 309111 309113 309117 309119 309123 309125 309129 309135 309137 309143 309147 309149 309153 309159 309165 309167 309173 309177 309179 309185 309189 309195 309203 366461
| A. | 23 | B. | 82 | C. | 24 | D. | 28 |