已知在25℃时，FeS、CuS的溶度积常数(K_sp)分别为6.3×10^－18、1.3×10^－36，常温时下列有关说法正确的是（      ）

    When it comes to car hiring,all car hire companies require that you should have a full driving license for at least one year,some of whom may ask for two years,especially for younger drivers.

    Most car hire companies will not automatically hire out a car to someone under the age of 25 or to people over 70. But there are exceptions. Some listed companies are normally prepared to serve people of 21 and over. And some may go over the age limit and provide service for older people( aged 70 and over) providing you have no record of breaking the law and valid license, and a doctor's letter of good health.

    Now read on for some information about national companies with many bases hiring out cars to people aged 21 and older drivers.

收入多元化，市民生活越来越幸福。如今，我国不少市民家庭收入来源不再是单一的工资性收入，而是通过家庭出租房屋、购买基金、获得股息及红利等多元化收入渠道，获得可观的财产性收入。这类财产性收入（  ）

①是按劳分配获得的                        ②是按生产要素分配获得的

③客观上造成人们之间收入差距的扩大          ④都必须缴纳营业税和增值税

能利用太阳光的能量，为动植物提供有机物和能量的结构是（　　）