笼中共有鸡、兔50只,共有120只脚。笼中有鸡( )只,兔( )只。

题型:填空题

问题:

笼中共有鸡、兔50只,共有120只脚。笼中有鸡(    )只,兔(    )只。

考点:鸡兔同笼
题型:填空题

Saying no starts small

“All right then — just one more piece...” Words every girl has said when they are faced with the delicious cheesecake. Of course, many of us know we may eat the whole thing in the end.

It isn’t just girls. Most of us find it hard to say “no” to something attractive. However, scientists now say that willpower is very important to success and a happy life.

Scientists in different countries have been studying the effects of willpower on people’s lives for a long time. The results are similar, according to an article on February 7 in the Guardian, a famous British newspaper.

In one experiment, scientists told young children that they could either have a marshmallow (圆形软糖) now, or two marshmallows in 15 minutes. Waiting obviously needed more willpower. Scientists then continued studying the children as they grew up. They wanted to see if some children always had stronger willpower. They also wanted to see how having stronger willpower affected their lives.

Years later, scientists found that the children who had waited for two marshmallows were all healthier, happier and richer adults. Oppositely, the children who had shown weaker willpower at that young age were more likely to be in low-paid jobs, to be overweight, to have social problems.

But there is hope, Roy F Baumeister, an American social psychology(心理学) professor (教授) told the Guardian. Baumeister says we can train our willpower just like we train our muscles(肌肉). Even a little practice can strengthen(加强) our overall self-control if we do it regularly.

You could start by making yourself stand up straight, speaking in complete sentences, or using a computer mouse with the other hand. Scientists have found that people who manage to change little habits often perform much better in laboratory willpower tests.

Like muscles, willpower can “get tired”. Don’t try to do too many things at the same time, or when you don’t have enough energy, for example when you are ill. If you already feel tired, you can try to recharge(恢复) your willpower with a good night’s sleep and by eating well.

小题1:The example of a girl eating cheesecake is used to

A.prove that girls have weak willpower

B.introduce the topic of willpower to the readers

C.show that cheesecake is especially attractive to girls

D.show the connection between willpower and success小题2:What can we infer from the experiment?

A.The scientists had already known the results before the experiment.

B.It showed that willpower is the most important to success and a happy life.

C.The children who chose to wait were more likely to be successful in their lives.

D.The children who chose only one marshmallow at first had stronger willpower.小题3:Which of the following is NOT mentioned about the training of willpower?

A.You should have a goal every day.

B.Good rest and proper diet can help.

C.Willpower needs to be exercised regularly.

D.Keep willpower from being used too much.小题4:What is the article mainly about?

A.How willpower and muscles are similar and how they can be trained.

B.How willpower affects people’s lives and how it is similar to muscles.

C.How willpower is important to success and how we can make it stronger.

D.How willpower is connected with success and how they affect each other

题型:填空题

下列叙述正确的是[ ]

A.铝制容器可盛装热的H2SO4

B.AgI胶体在电场中自由运动

C.K与水反应比Li与水反应剧烈

D.红磷在过量Cl2中燃烧生成PCl3

题型:填空题

世界银行、国际货币基金组织与关贸总协定是战后资本主义世界经济体系的三大支柱,它们的相同作用不包括  [ ]

A.消除了世界各国的贸易保护主义

B.一定时期内维护了美国霸主地位

C.稳定了资本主义世界的经济秩序

D.促进世界经济向制度化方向发展

题型:填空题

跨国公司内部交易的特征是()。

A、转移定价

B、统一管理

C、完全控股

D、内部商品调拨

题型:填空题

患者,女性,32岁。风心病二尖瓣狭窄及关闭不全12年,近3年来每年冬季好发心衰,平日坚持服用地高辛及利尿剂。近l周出现咳嗽、吐黄痰、发热,2天来心跳加速、气短加重入院。体检:T38℃,R28次/分,BPl00/70mmHG。神清,半卧位,口唇、面颊、甲床发绀,可见颈静脉怒张,心界扩大,心率120次/分,律齐,两肺满布干湿性哆音,肝肋下2指,脾(一),无腹水,双下肢凹性水肿。

责任护士遵医嘱发给患者地高辛时,应做好发药前的护理评估,下列哪项不必要()

A.询问有无头痛、头晕、黄视、绿视

B.询问患者有无食欲减退、恶心、呕吐

C.询问有无四肢麻木、针刺样疼痛

D.注意心律是否存在原来规则变为不规则或不规则变为规则

E.数心率有无低于60次/分

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