1.若x的相反数是$\frac{1}{3}$,那么x的倒数是( )
| A. | 3 | B. | -3 | C. | $\frac{1}{3}$ | D. | $-\frac{1}{3}$ |
17.在2,0,-2,-3这四个数中,最小的数是( )
0 278924 278932 278938 278942 278948 278950 278954 278960 278962 278968 278974 278978 278980 278984 278990 278992 278998 279002 279004 279008 279010 279014 279016 279018 279019 279020 279022 279023 279024 279026 279028 279032 279034 279038 279040 279044 279050 279052 279058 279062 279064 279068 279074 279080 279082 279088 279092 279094 279100 279104 279110 279118 366461
| A. | -3 | B. | -2 | C. | 0 | D. | 2 |