如图所示，小孩从滑梯上滑下的过程中，臀部有灼热的感觉，下列说法正确的是(   )

三亿九千三百五十四万八千九百写作____，把它四舍五入到“万”位约是____．

    Kong Xiangdong, a famous classical 1 always wanted to create something new. He2classical music with Chinese folk music. Music has always been part of Kong's world. Since his mother was a music lover, he lived with music from3However, his mother couldn't buy him a piano so she had to draw piano keys 4a piece of paper. The 5-year-old Kong would practice on the paper piano5his mother clapped the rhythm. Although he thought about giving up because of too much practice, he didn't  6 He began to win7 at the age of 18. He became famous worldwide, but after years of8 he felt in some ways he had lost himself. Therefore he went back to his roots and 9the beauty in Chinese folk music. He even shaved off his hair to change his 10 for the new music style!

①公民的权利与义务是相统一的               ②公民的权利与义务都具有强制性 
③维护正义就要维护社会的规则和秩序   ④公民在享有权利的同时必须履行相应的义务