“夫商君为孝公平权衡，正度量，调轻重，决裂阡陌，教民耕战，是以兵动而地广，民休而国富，故秦无敌于天下。”这段史料可以提供的历史信息有

①商鞅变法的措施包括统一度量衡、废除井田制、奖励耕战等

②商鞅变法是战国时期最彻底的变法③商鞅变法使秦国经济军事实力大增

④商鞅变法调动农民积极性，促进农业生产发展

A．①②④

B．①③④

C．②③④

D．①②③

根据所给的首字母提示，完成短文。

Yesterday I visited the Baihai Zoo．I was s­­­­­­  小题1:   to find few people there．Zoos are very important places．They p  小题2:   homes for many endangered animals．They also help to educate the public about caring f  小题3:   them．If we don’t s  小题4:   our zoos, they won’t have e  小题5:   money to take care of so many fine animals．Therefore, people should go and visit the zoos m  小题6:   often to learn about animals and help to protect them better．

H  小题7:  , some people don’t think so．They think zoos are t  小题8:   places for animals to live．“I’ve visited a lot of zoos in my life, and I have never seen o  小题9:    I liked or one that was suitable for animals to live in．” Jenny said．‘The animals are k   小题10:    in small cages and can hardly move at all．What’s more, they are only given food once a week．That’s terrible．”