填入横线最恰当的一组是 （     ）
春联是文学殿堂里的一枝奇葩，它发自千人之心，出自万人之手，各展其才，各显千秋，豪放________，婉约________，粗犷________，细腻________，洋洋洒洒，蔚为大观。

（说明：①每户产生的污水量等于该户的用水量，②水费=自来水费+污水处理费；

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（   ）

    The White House is an important historical building in the USA. It lies1the country's capital. Many people expect2see the palace with their own eyes.

    We3six months getting tickets to visit the White House. I was 4with excitement while we were waiting in the White House South Lawns. The first thing5interested me was the colorful flowers and green grass.

    Everything inside and outside was6kept in the white House. We went7many security checks(安检)8entering the building. In the east hallway9the first floor, I saw the pictures of past presidents on the walls. The10had over 2700 books. The Vermeil Room(金银屋) and China Room（瓷器屋） showed different11

    We walked upstairs to the State Floor. The East Room, the12in the White House, was the most wonderful in its size and furniture. This is the room where the president usually13the reporters. The Green, Blue and Red Rooms on the same floor got their names because of the 1414of the furniture and walls. These rooms are15having parties for state guests.