相似三角形的对应边______,对应角______,对应______的比、对应_

题型:填空题

问题:

相似三角形的对应边______,对应角______,对应______的比、对应______的比和对应______的比都等于相似比,对应______的比也等于相似比,对应______的比等于相似比的平方.

考点:相似三角形的判定
题型:填空题

国旗护卫队如果每天训练12个小时,102天约训练多少个小时?

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以下城市化的标志:

    ①城市人口在总人口中的比重上升 ②城市人口增加 ③城市用地规模扩大 ④城市经济规模扩大

其中属于衡量城市化的主要指标是 [ ]

A、①④

B、①②④

C、①②③

D、①③④

题型:填空题

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有多余选项。

Have you ever seen any students whose trousers hang so low you can see their underwear? What do you think of that? Fashionable? Some of today’s teenagers are big fans of such a look. 71. __________

The headmaster of a school in central Italy has asked students to stop wearing low-rise jeans that expose underwear and parts of the body. His request came after a class trip. One day, he saw one boy’s baggy trousers slide to his feet. 72. ____________    

But in Italy, a nation that takes fashion very seriously, the suggestion caused a debate among parents, teachers and students. The issue is whether the headmaster's request will limit students' freedom— or whether dress in Italian schools is too casual.

73. _________ “We do not want to kick fashion out,” the headmaster explained, “but extremes (极端) of fashion like this are not right in school.” Many other schools have now requested that their students also stop wearing such trousers.

74._________ Ludovica Gaudio, 14, wore extremely low trousers exposing orange underwear in class. It was cold, so she wore a matching orange scarf. 75._______________ “I don't really feel comfortable in those sort of jeans,” said Sarah Lattanzi, “in winter, when dressed like that, it's quite cold and I am afraid my stomach will ache.”

A.But recently this trend has been at the center of an argument in Italian middle schools.

B.A parents’ group praised the move in favor of good taste, while others advised schools to stop worrying about fashion and fix up old school buildings.

C.He pointed out that this way of dressing is not suitable for school.

D.Most students have simply ignored the request.E. Another 14-year-old said she would probably respect the request, simply for practical reasons.

F. Let us see that Italian students react differently to schools’ requests.

G. Schools should pay attention to things more important than students’ clothes.

题型:填空题

心室率160次/min,QRS宽大畸形呈左束支阻滞形,RR基本规则,Ⅱ导联可见心室夺获和室性融合波。心电图诊断为()

A.室性心动过速

B.室上性心动过速伴左束支阻滞

C.心房扑动2:1传导并左束支阻滞

D.窦性心动过速并左束支阻滞

E.以上都不是

题型:填空题

在人身保险合同中,选项所列哪种情形必然导致保险人免责()

A.投保人故意造成被保险人伤残

B.受益人故意造成被保险人伤残

C.被保险人犯罪

D.被保险人自杀

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