【历史上重大改革回眸】

商鞅变法立足国情，顺应时势，对秦国以至中国历史的发展都产生了重要影响。阅读下列材料：

材料一：分封贵族之采地渐次取消，则直属国家之耕地渐次扩大，於是以前贵族圈地分区小规模的井地，不得不解放为整块的农田。……视其田亩之实收而抽收额定之比率。……於是民田得自由买卖，而土地所有权，无形中转移，成为耕者所自有，而兼并亦随之而起。

——钱穆《国史大纲》

材料二：然列国环伺，时相侵凌，非有富强之国力，则亦无以自存。商子曰：“国之所以重，主之所以尊者力也。”……务力之方在使民致身于农战之二事，而此外与二者无益或有害者皆在抑止之列。……几乎欲举一国之学术文化而摧毁扫荡之，使政治社会成为一斯巴达之战斗团体，此则其独到之见解，亘千古而鲜匹者也。

——萧公权《中国政治思想史》

请回答：

B

Most children don't enjoy doing housework. They like playing computer games rather than cleaning the rooms. But in Australia, Jim and Robert's mother, Mrs. Black, has good and proper methods to get their children to do housework. Here is an example. "Mum, have you worked out next week's housework? Let Jim and me choose the cards I can't wait. It's fun!" When Robert shouted out, his mother had already put all the cards on their big table. On the cards, there are some words like these, "sweep the floor, clean your bedroom, help mum cook, wash vegetables, make beds, feed the fish, cut the wood, clean the bathroom" and many others, Jim and Robert chose two cards for each day from Monday to Friday. Then they would hang them on the week day task board. Jim likes to clean the bathroom, so he picked up the card "clean the bathroom". Robert loves to make the bed so he picked up his favorite card. Jim again picked up "wash vegetables" and Robert chose "feed the fish". Soon the two boys were happy to take away all the cards to help the children do housework, their mother thought hard and came up with this idea. Of course, the parents did the housework on the weekends and left Jim and Robert two days free.

                                                                    Ryan