Dunnottar Castle (城堡)

    Castle open times:

    Summer season: (April 1^st - September 30^th ) 9:00-5:30 every day.

    Winter season: (October 1^st -March 31^st )

    Oct 1^st - Oct 28^th 10:00-4:30

    Oct 29^th -Nov 11^th 10:00-3:30

    Nov 12^th -Nov 25^th 10:00-3:00

    Nov 26^th- Jan 20^th 10:00-2:30

    Jan 21th-Feb 3^rd 10:00-3:00

    Feb 4^th- Feb 17^th 10:00-3:30

    Feb 18^th- Feb 24^th 10:00-4:00

    Feb 25^th- Mar 31^st 10:00-4:30

    Bad Weather Conditions:

    Before going to the Castle, we advise you to visit our website(www. dunnottar.com)to make sure that the Castle is open. On the days of bad weather, the castle may be closed for safety reasons.

    Prices:

    Adult ticket:

    Children ticket:

    Guide Book:

    Buy tickets at the door.

    We do not offer pre-booking(预定)for tickets.

    Castle Closure Dates:

    The Castle will be closed on the following dates-25th of December and the 1^st 2^nd of January.

    Post code: AB39 2TL

    Dogs: Dogs are welcome at the Castle as long as they are kept on a leash(皮带) at all times.

我国地域辽阔南北纬度跨度大，下列省区积雪期最长的是（　　）

如图是一块带有圆形空洞和方形空洞的小木板，则下列物体中既可以堵住圆形空洞，又可以堵住方形空洞的是(   )

①取少量白色粉末放入试管里，加入适量蒸馏水，振荡得到无色溶液．

②在上述溶液中加入足量氯化钡溶液有白色沉淀生成，再加足量硝酸，沉淀部分消失．

③取上层清液，滴加硝酸银溶液，有白色沉淀生成，再加硝酸，沉淀不消失．

根据实验现象无法确定白色粉末中是否存在的物质是（　　）