下图为植物的嫁接示意图,看图回答下列问题:(每空1分,共10分) (1)嫁接是

题型:实验题

问题:

下图为植物的嫁接示意图,看图回答下列问题:(每空1分,共10分)

(1)嫁接是绿色开花植物人工营养生殖常用的方法之一,除此之外绿色开花植物人工营养生殖常用的方法还有             等。

(2)如图所示的嫁接法为       法;嫁接材料由            两部分组成,前者的主要特性是              ,后者的主要特性是             

(3)保证嫁接成活的关键是                                        

(4)“味道好的优质桃和抗性强的山桃”这个嫁接组合中,作为接穗的是                 ,作为砧木的是                   

考点:植物的有性生殖植物的无性生殖植物无性生殖的应用
题型:实验题

不得销售他人生产的药品()

A.药品生产企业

B.医疗机构

C.药品经营企业

D.药品生产企业、药品经营企业

E.药品生产企业设立的办事机构

题型:实验题

阅读理解。

     No one can change the weather. But if we read correctly the signs around us, we can tell how

the weather will be. This way of telling of what the weather will be like on the following day or two is

called weather forecasting. For many centuries and in all countries, people have studied the weather

and tried to make weather forecasting. Rings around the sun are a sigh of coming rain. Many people

feel in their bones the coming of wet weather, their joints ache. Some birds fly high if fine weather is

coming, but they fly near the ground if rainy or stormy weather is on the way. It is probably because

of the insects which they are hunting that they fly low. If you see a rainbow during rainy weather, this

is a sign that the weather will become clear and fine. Such rainbows come in the evening. If the stars

twinkle clearly at night, then fine weather will continues. If a fog appears in the morning just above a

river, then the day will be warm. If the sunset is mostly red in color, then the following day will be

warm. If a rainbow appears in the morning, rainy weather will probably come. Most of the above

saying have been made by the people who have used their eyes and brains to make weather

forecasting.

1. People's joints ache _______.

A. is a sign of coming rain      

B. without any reason  

C. because they are ill          

D. because of the insects

2. Which is true about weather forecasting?

A. Weather forecasting is a report about the weather on the following day or two.

B. Weather forecasting is a way of telling what the weather will be like.

C. Weather forecasting is a sign of coming rain.

D. People can change the weather forecasting.

3. The birds fly high and the stars twinkle clearly is a sign that the weather will _______.  

A. be warm    

B. be rainy      

C. become clear and fine   

D. be cold

4. A rainbow is a _______ of the fine weather.  

A. sign      

B. way      

C. method      

D. road

5. We must _______ to make weather forecasting. 

A. use our eyes and brains      

B. study the weather hard

C. read correctly signs          

D. All of the above

题型:实验题

下列培养基中不属于营养培养基的是()

A.血琼脂培养基

B.巧克力琼脂培养基

C.吕氏血清培养基

D.卵黄双抗培养基

E.鸡蛋斜面培养基

题型:实验题

技术国际化

题型:实验题

物资市场的需求主要取决于()。

A.国民经济发展速度和生产结构比例

B.生产的不间断性和均衡性

C.需求弹性

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