搜题请搜索小程序“爱下问搜题”
问题 选择题

家鸽体内既能储存空气，又能减轻体重的是（　　）

A．气囊

B．肺

C．直肠

D．心脏

答案

A、家鸽有气囊，气囊的功能是贮存空气，使吸入的空气两次通过肺，保证肺充分地进行气体交换，协助肺完成双重呼吸，为飞行提供充足的氧气．符合题意．

B、肺是家鸽气体交换的场所，不能储存空气，不符合题意．

C、家鸽的直肠短，产生的粪便能随时排出体外，减轻飞行时的体重，但不能储存空气，不符合题意．

D、家鸽的心脏有四腔，使得血液循环旺盛，提高了输送氧气的能力，不符合题意．

故选：A

不定项选择 案例分析题

阳光公司2013年6月末简要资产负债表如下：

资产负债表（简式）

2013年6月30日

单位：元

2013年7月，阳光公司发生下列经济业务：

（1）以银行存款20000元购买生产用设备；

（2）将到期无力偿还的应付票据10000元转为应付账款；

（3）将资本公积6000元转增实收资本；

（4）购进生产用材料8000元，款项尚未支付。

要求：根据上述资料，回答第下列小题（不考虑其他因素和各种税费）。

下列表述正确的有（）。

A.以银行存款20000元购买生产用设备，会引起资产内部的一增一减

B.将到期无力偿还的应付票据10000元转为应付账款，会引起负债内部的一增一减

C.将资本公积6000元转增资本，会引起所有者权益内的一增一减

D.购进生产用材料8000元，款项尚未支付，会引起资产与负债同时增加
查看答案
单项选择题

There are two types of people in the world. Although they have equal degree of health and wealth and other comforts of life, one becomes happy and the other becomes unhappy. This arises from the different ways in which they consider things, persons, events and the resulting effects upon their minds.
People who are to be happy fix their attention on the convenience of things: the pleasant parts of conversation, the well prepared dishes, the goodness of the wine and the fine weather. They enjoy all the cheerful things. Those who are to be unhappy think and speak only of the opposite things. Therefore, they are continually dissatisfied. By their remarks, they sour the pleasure of society, offend (hurt) many people, and make themselves disagreeable everywhere. If this turn of mind was founded in nature, such unhappy persons would be the more to be pitied. The intention of criticizing and being disliked is perhaps taken up by imitation. It grows into a habit, unknown to its possessors. The habit may be p, but it may be cured when those who have it realize its bad effects on their interests and tastes. I hope this little warning may be of service to them, and help them change this habit.
Although in fact it is chiefly an act of the imagination, it has serious results in life since it brings on deep sorrow and bad luck. Those people offend many others; nobody loves them, and no one treats them with more than the most common politeness and respect. This frequently puts them in bad temper and draws them into arguments. If they aim at getting some advantages in social position or fortune, nobody wishes them success. Nor will anyone start a step or speak a word to favor their hopes. If they bring on themselves public objections, no one will defend or excuse them, and many will join to criticize their wrongdoings. These should change this bad habit and be pleased with what is pleasing, without worrying needlessly about themselves and others. If they do not, it will be good for others to avoid any contact with them. Otherwise, it can be disagreeable and sometimes very inconvenient, especially when one becomes mixed up in their quarrels.

If such unhappy persons insist on keeping the habit, the author suggests that people should ______.

A. prevent any communication with them
B. show no respect and politeness to them
C. persuade them to recognize the bad effects
D. quarrel with them until they realize the mistakes
查看答案