问题 判断题

我国《企业会计准则》规定,企业会计核算应当以权责发生制为基础。 ( )

答案

参考答案:

阅读理解

New findings suggest that brainy card games such as contract bridge may temporarily(临时地) raise production of a key blood cell including in fighting off illness. After 90 minutes of play, bridge players had increased levels of immune(免疫) cells, according to the research reported last week.

A researcher, Diamond, studied bridge players from a women’s bridge club. She chose bridge players because the game includes skills stimulating(刺激) a part of the brain called the dorsolateral cortex. Earlier animal research suggests that this part of the brain may play a role in the immune system.

The findings are based on blood samples drawn from 12 women players. Their blood samples showed a rise in levels of white blood cells called T cells after they played bridge for 90 minutes. T cells are produced by the thymus gland(胸腺) and used by the immune system against diseases.

The T cell count jumped significantly in eight of the bridge players, and slightly in the other four. The findings contribute to the field of neuroimmunology(神经免疫学), whose name reflects the fact that the nervous system and the immune system are not considered separate and isolated(独立的) systems. What isn’t clear is whether the help to the immune system from an activity like contract bridge is lasting or temporary. It is also not clear whether the increase in T cells could finally be targeted against special illnesses.

小题1:Playing bridge can help one to fight off diseases because it can _______.

A.raise production of a key blood cell

B.make people joyful

C.aid digestion

D.make break away from the bad habits小题2:Diamond chose to study bridge players for the research because _______.

A.the players are good friends of hers

B.she loves playing bridge

C.this game stimulates a part of the brain that has something to do with immune system

D.she is a clever manager, who operates her bridge club well小题3:A T cell is _______ cell.

A.a brain

B.a white blood

C.a red blood

D.a kind of dangerous blood小题4:Which of the following is true according to this article?

A.The immune system and the brain system used to be considered separate and isolated systems.

B.The help to the immune system that is brought about by playing bridge can last for a long time.

C.Cortex is a kind of blood cell.

D.The new findings are impossible.

单项选择题

阅读下面一段说明文,完成下列4题。
什么是星云过去人们往往把天空中一切云雾状的天体都说成是星云。其实,离我们非常遥远的位于银河系以外的云雾状天体,并不是星云,而是与银河系类似的庞大的恒星系统。根据它们的外貌,人们有时也称其为河外星云,即银河系以外的星云。不过,实际上还是应当如实地把它们称为河外星系。河外星系的发现使我们知道,在天文学史上早期所发现的“星云”中,只有一部分是真正的星云。星云不但应当看起来是云雾状的,而且应当是真正由气体和尘埃组成的云雾状物质。这样的星云广泛地存在于银河系和河外星系之中。而我们现在所能看到的只局限于银河系的星云,即所谓银河星云。它的类型不同。形状不一,大小不等。其中有一种叫弥漫星云,具有不规则的形状,一般没有明确的边界。我们的太阳系就是在弥漫星云中形成的。但是,直接形成太阳系的,并不是整个的弥漫星云,而是由弥漫星云分解而成的星云块,即所谓球状体。形成太阳系的那个球状体,我们称它为太阳星云。

选出下列说法中的符合文意的一项是:

A.过去把天空中一切云雾状的天体都说成是星云,现在只把真正由气体和尘埃组成的云雾状天体称做星云。

B.过去把天空中一切云雾状的天体都说成是星云,其实离我们非常遥远的银河系以外并没有星云,那只是些恒星,只因为距离遥远,看起来呈云雾状罢了。

C.天文学史上早期发现的星云,其实并不是星云,而是与银河系类似的庞大的恒星系统。

D.弥漫星云是由气体和尘埃组成的,具有不规则的形状,一般没有明确的边界,外貌呈云雾状的物质。