题目

下列关于生物体内有机物的叙述,正确的是( )A. 脂质不参与生命活动的调节B. 蛋白质是生物体主要的能源物质C. 核酸是生物体储存遗传信息的物质D. 糖类都是能源物质 答案：【答案】C【解析】有的脂质参与生命活动的调节，如性激素（属于固醇类）参与激素调节，A错误；生物体主要的能源物质是糖类，B错误；核酸是生物体储存遗传信息的物质，DNA是主要的遗传物质，C正确；有些糖类仅是细胞的结构物质，如细胞壁的成分纤维素，D错误。Leeds CastleOne of the most popular places of interest in Britain Opening timesOpen all year round except 7th and 8th November and Christmas Day（25th December）2009．1 April to 30 September 2009Open：10:30 am—5:30 pm Gates close at 6pm1 October 2009 to 31 March 2010 Open：10:30 am—4 pm Gates close at 5pm PricesAdults：￡16.50 Students：￡9.50 Children under 4：free 【小题1】Leeds Castle is closed on _________．A．7th JanuaryB．8th AugustC．25th DecemberD．1st April【小题2】John and Mary will take their three-year old son to Leeds Castle．How much should they pay?A．￡33． B．￡16.50． C．￡26． D．￡9.50．【小题3】What time does Leeds Castle close on 29th October? A．6 pm． B．6:30 pm． C．5:30 pm． D．5 pm．