假设2015年1单位甲国货币可以兑换6单位乙国货币，甲国A商品出口到乙国后标价为33单位乙国货币。2016年，甲国A商品的社会劳动生产率提高了10%，甲国货币对乙国货币贬值20%，然后乙国通货膨胀了15%，不考虑其他因素，这时甲国A商品出口到乙国的标价应为___单位乙国货币。（  ）

如图：二次函数y=ax2+bx+c的图像所示，下列结论中：①abc＞0；②2a+b=0；③当m≠1时，a+b＞am²+bm；④a﹣b+c＞0；⑤若ax₁²+bx₁=ax₂²+bx₂，且x₁≠x₂，则x₁+x₂=2，正确的个数为（   ）

    In almost every big university in the United States, football is a favorite sport. American football is different. Players sometimes kick the ball, but they also throw the ball and run with it. They try to take it to the other end of the field. They have four chances to move the ball ten yards（码）. They can carry it or they can throw it. If they move the ball ten yards, they can try to move it another ten yards. If they move it to the end of the field, they receive six points.

    It is difficult to move the ball. Eleven men on the other team try to stop the man with the ball. If he does not move the ball ten yards, his team kicks the ball the other team.

    Each university wants its own team to win. Many thousands of people come to watch. They all shout for their favorite team.

    Young men and women come on the field to help the people shout more. They dance and jump while they shout.

    Each team plays ten or eleven games each season. The season begins in September and ends in November. If a team is very good, it may play another game after the season ends. The best teams play again on January 1, the first day of the New Year. Many people go to see these games and many others watch them on TV.

“我无为而民自化，我好静而民自正，我无事而民自富，我无欲而民自朴”老子的这句话对当前社会主义市场经济条件下我国政府工作的启示是（  ）

①要充分发挥市场经济的决定作用，减少政府的行政干预

②相信群众会自觉遵循市场规律，不要试图去引导群众

③政府应当廉洁自律，自觉抵制私欲的诱惑

④政府应当坚信无为而治