题干

已知关于x的方程2x+a-9=0的解是x=2,则a的值为(     )

A:2

B:3

C:4

D:5

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答案(点此获取答案解析)

D

同类题1

阅读《醉翁亭记》,完成小题

醉翁亭记

欧阳修

       环滁皆山也。其西南诸峰,林壑尤美,望之蔚然而深秀者,琅琊也。山行六七里,渐闻水声潺潺而泻出于两峰之间者,酿泉也。峰回路转,有亭翼然临于泉上者,醉翁亭也。作亭者谁?山之僧智仙也。名之者谁?太守自谓也。太守与客来饮于此,饮少辄醉,而年又最高,故自号曰醉翁也。醉翁之意不在酒,在乎山水之间也。山水之乐,得之心而寓之酒也。

        若夫日出而林霏开,云归而岩穴暝,晦明变化者,山间之朝暮也。野芳发而幽香,佳木秀而繁阴,风霜高洁,水落而石出者,山间之四时也。朝而往,暮而归,四时之景不同,而乐亦无穷也。

       至于负者歌于途,行者休于树,前者呼,后者应,伛偻提携,往来而不绝者,滁人游也。临溪而渔,溪深而鱼肥。酿泉为酒,泉香而酒洌;山肴野蔌,杂然而前陈者,太守宴也。宴酣之乐,非丝非竹,射者中,弈者胜,觥筹交错,起坐而喧哗者,众宾欢也。苍颜白发,颓然乎其间者,太守醉也。

       已而夕阳在山,人影散乱,太守归而宾客从也。树林阴翳,鸣声上下,游人去而禽鸟乐也。然而禽鸟知山林之乐,而不知人之乐; 人知从太守游而乐而不知太守之乐其乐也醉能同其乐醒能述以文者太守也。太守谓谁?庐陵欧阳修也。

同类题2

阅读理解

    Henry had been a journalist for many years. He had worked on many international newspapers and magazines and traveled all over the world.

    Henry had witnessed wars and natural disasters such as floods, earthquakes and erupting volcanos(火山爆发). He had reported on serious accidents such as major fires and airline crashes. He had seen every kind of terrible crime and strange event there was. He had met and written about some of the most unusual people in the world. In fact, there wasn't much that Henry had not seen or done.

    Now he was retired from journalism. He owned a very expensive restaurant and spent his days talking to his wealthy and important customers. He liked to say that nothing surprised him.

    One day he was sitting at the bar in his restaurant when a big gorilla walked in and asked for a table. Henry showed no surprise. He took the gorilla to a table and handed him a menu. He treated him politely and pretended there was nothing at all strange about having a gorilla in his restaurant.

    The gorilla looked through the menu and ordered a salad. Henry served the gorilla his salad personally, knowing that his waiters and waitresses would be too frightened. At last the gorilla finished his salad and asked for the bill. Henry wrote out the bill and handed it to the big animal. The gorilla studied it, shook his head sadly, then gave Henry fifty dollars.

    "Thank you", Henry said, and then to make conversation he added, "We don't get many gorillas in this restaurant."

    "At fifty dollars for a salad," the gorilla said, "I'm not surprised."