题干

已知点A在半径为3的⊙O内,OA等于1,点B是⊙O上一点,连接AB,当∠OBA取最大值时,AB长度为(  )

A:10

B:22

C:3

D:2

上一题 下一题 0.0难度 选择题 更新时间:2019-11-15 05:38:18

答案(点此获取答案解析)

B

同类题1

阅读理解

    Women make better drivers than men for many reasons. Why is that? If you ask me, I'd like to say, men know that women are better drivers but do not have the courage to admit the truth—women are queens of the road.

    Unlike men, women stop for directions when they have no idea as to where they are going. We don't drive around for hours pointlessly wasting a tank of gas only to find ourselves heading in the wrong direction. Have you ever been in a car with a man who is lost? He tells you to shut up when you begin to open your mouth. And every five minutes or so he takes a turn going forty-five miles per hour only to find out he's made another wrong turn.

    Speeding is what men do best on the road. There is a reason why men get more speeding tickets than women. Not because we trick to get out of tickets but only because we don't get pulled over as frequently. We don't speed. We have more intelligence than senselessly to put our own lives as well as the lives of others in danger.

    My largest issue with male drivers is how a majority of them drive with one hand on the wheel and the other hand doing only God knows what. The seat is backed as far as possible, and they're totally lost into loud music beyond a necessary level. You don't ever see women driving like that.

    I feel that the above evidence more than proves my points that women are not only better drivers but also safer drivers than men. We women rule the road. Oh, and men, if you want to continue criticizing(批评)women for being bad drivers, bring it on.

同类题3

阅读材料,完成下列要求。

材料一:在社会济贫问题上,宋朝于1057年颁布修胎养令,规定凡下户怀妊而不能自存者,以粟颁赐之。1257年,令“天下诸州建慈幼局”。关于贫民之收养,设有专门机构,……至于漏泽园,由政府提供公地,“埋葬无主死人……”。这种由“胎养到祭祀”的福利,虽比当代福利国家所提供的涵盖较广,但却主要是选择性,局限于贫而无告者之特殊对象。在两宋,社会互助观念业已产生。社会互助始于宗族,这是以范仲淹的义庄为滥觞,这些义庄义田,是利用其田租以赡族人。南宋时,这种互助由宗族扩及乡党。——侯家驹《中国经济史》

材料二:16世纪以前,英国救济穷人问题多通过基督教的慈善施舍和同业同行会的互助互济的方式来解决,国家并未将其视为自己的责任。圈地运动开始后,偷盗者、乞讨者等日益增多,社会不安定因素急剧增加。1601 年,英国颁布《济贫法》,规定:老弱残疾而不能工作的贫民可以得到救济……流浪者被关进监狱或送入教养院。1834年议会通过《济贫法(修正案)》。该法规定受救济者必须是被收容在济贫院中的贫民,可享受最低生活保障,有劳动能力的失业者必须进“贫民习艺所”,才能得到救济,而那里被称之为劳动者的“巴士底狱”。——摘编自陈晓律《英国福利制度的由来与发展》

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