香豌豆中，当C、R两个显性基因都存在时，花呈红色。一株红花香豌_爱下问搜题

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问题选择题

香豌豆中，当C、R两个显性基因都存在时，花呈红色。一株红花香豌豆与基因型为ccRr的植株杂交，子代中有3/8开红花；若让此红花香豌豆进行自交，后代非红花香豌豆中纯合子占 [ ]

A．9/16

B．1/4

C．1/2

D．3/7

答案

答案：D

阅读理解

It helps to choose the colors you plan to live with in your home with awareness of how different colors affect your emotional and physical states. Every color has a unique meaning, and this can significantly affect how you feel in a room.
Simple Solution:
Using this simple chart, you can choose a room’s color to be in balance and harmony with the role you want a room to have in your and your family’s life.

Red: A room that is painted red will energize, inspire activity and movement, help passion, and be powerful and stimulating. it is a great choice for such gathering places. Orange enhances parties,	Orange: Orange rooms encourage happy, joyful, social gatherings. While an orange dining room or family room can stimulate the appetite, it is a great choice for such gathering places. Orange enhances parties, communication, positive feelings, and general good cheer.
Yellow: Yellow rooms inspire intellectual clarity, organization, clear-headed thinking, and happy energy. Yellow is considered a color for the logical left side of the brain. Yellow is also very bright and somewhat energizing.
	Blue: Blue rooms are often chosen for bedrooms and meditation (冥想) rooms because its cool energy is very calming, restful, peaceful, and spiritual. Blue helps inspire a quiet meditative quality, and color therapy with blue has been found to reduce blood pressure. Blue is also useful to make one to sleep.
Green: Green rooms are very restful but combine with an energizing quality. Green is the color of outdoors, calm and active at the same time. Green brings balance and harmony to a room, and can be used as a calming place for people who are troubled or in need of refreshment.

小题1:What impression can green rooms give to you?

A．Passionate and powerful.	B．Refreshing and harmonious.
C．Cool and calming.	D．Inspiring and bright.

小题2:If you are going to hold a family gathering, which color of the room can best enhance your atmosphere?

小题3:Which of the following statements about color is NOT true?

A．Yellow rooms inspire logical and clear thinking.

B．Blue creates a quiet meditative quality.

C．Different colors affect you emotionally and physically.

D．Red rooms are acceptable when you are in a bad mood.

单项选择题

骨骼肌血管平滑肌上分布有：

A．α、β和M受体

B．α和M受体，无β受体

C．M受体，无α和β受体

D．α和β受体，无M受体

E．α受体，无M和β受体