为何双子叶植物的茎能增粗,而单子叶植物的茎不能增粗?

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问题:

为何双子叶植物的茎能增粗,而单子叶植物的茎不能增粗?

考点:植物学植物学综合练习(一)植物学综合练习(一)题库
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When you get tired of homework, several minutes’ walk in a nearby green park helps you relax at once. Or you may stand facing the lake or the sea. They’ll calm (not to be excited or nervous) you just like the green plants.

Wonder why? Color is a key part of the answers. Since it is so, green and blue help make people feel more quiet and safe.

All colors have special power. Scientists have found that many colors have specific effects (效果) on people’s minds and feelings.

Try an easy and interesting experiment and you’ll see how color “misleads” you sometimes. Wrap (包装) two boxes of the same size with colored paper, one red and the other white. Then weigh the two boxes with your hands. Which one is heavier? Most people will think that the red box is heavier, even though they weigh the same.

Colors can affect (影响) learning. Scientists have found that students spend more time reading if they read information written in blue text. Blue helps most people calm down and think more.

Smart (clever) uses of colors in daily life are to be seen everywhere. Hospital and libraries seldom (很少) paint their walls, tables and desks red. They use light colors, like light blue or green. Red makes people excited while light colors help them relax. Haven’t worked out how color affects your daily life? Start with your small room. Try to make some changes in it and you’ll get to know how important color is!

小题1:The underlined word “misleads” means ______

A.affects

B.effects

C.causes someone to have a wrong idea

D.give wrong directions小题2: We’d better paint the walls of the hospital in ______

A.light blue or light green

B.deep red or deep brown

C.deep orange or deep red

D.light green or light yellow小题3: If you want to _______, you’d better sit in the room painted blue.

A.weigh something with your hands

B.study attentively

C.face the lake or the sea

D.enjoy some rock music小题4: Which of the following is NOT true?

A.When you are going to have a rest, you’d better sit in the room painted green

B.Scientists have known some differences among some colors

C.When you get tired of homework, you should look at the green plants far away

D.The passage has told us clearly why some colors are warm and other are cool小题5:The reading mainly shows us _____

A.the difference between red and white.

B.how to get on well with others

C.how to make smart uses of different colors in our daily life

D.how to paint and decorate our rooms

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不能复印或者复制病案资料的人员是()。

A.患者本人及代理人能提供有效身份证明的

B.保险机构能提供有效证明的

C.公安、司法机构能提供有效证明的

D.无法提供有效证明的委托人

E.死亡患者近亲能提供有效证明的

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票据的签发、取得和转让,必须具有真实的交易关系和债权债务关系。()

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下列哪项不能避免老年人多重用药的现象()。

A.缩短药物列表

B.充分考虑药物相互作用对疾病的影响

C.审核处方,减少不必要的重复用药

D.准确记录患者服药种类、剂量及时间

E.抓住疾病的主要矛盾

题型:问答题 简答题

联合前提是针对某个结论()起作用的前提。

A.单独

B.最终

C.共同

D.辅助

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