Stephen Hawking believes that earth is unlikely to be the only planet life has developed gradually.
A:that
B:where
C:which
D:whose
观察下列三行数:
①0,3,8,15,24,…
②2,5,10,17,26,…
③0,6,16,30,48,…
①礼之用,和为贵 ②克勤于邦,克俭于家
③二人同心,其利断金 ④亲仁善邻,国之宝也