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问题 单项选择题 A型题

国家对药品质量规格、检验方法所作的技术规定及药品生产、供应、使用、检验和管理部门共同遵循的法定依据是（）

A.药品标准

B.成方制剂

C.成药处方集

D.药剂规范

答案

参考答案：A

实验题

现要验证“当合外力一定时，物体运动的加速度与其质量成反比”这一物理规律。给定的器材如下：一倾角可以调节的长斜面（如图）、小车、计时器一个、米尺、天平、砝码、钩码若干。实验步骤如下（不考虑摩擦力的影响），在空格中填入适当的公式或文字。

（1）用天平测出小车的质量m

（2）让小车自斜面上方一固定点A1从静止下滑到斜面底端A2，记下所用的时间t。

（3）用米尺测量A1与A2之间的距离s。则小车的加速度a＝            。

（4）用米尺测量A1相对于A2的高度h。则小车所受的合外力F＝               。

（5）在小车中加钩码，用天平测出此时小车与钩码的总质量m，同时改变h，使m与h的乘积不变。测出小车从A1静止开始下滑到斜面底端A2所需的时间t。请说出总质量与高度的乘积不变的原因______________________________。

（6）多次测量m和t，以m为横坐标，t2为纵坐标，根据实验数据作图。如能得到一条____________线，则可验证“当合外力一定时，物体运动的加速度与其质量成反比”这一规律。
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改错题
短文改错。
     Three young pioneers were playing while they saw a young    
tree bending to one side with some of it's leaves falling.    
They felt sadness and decided to save it. They put            
up a hard stick close by and tie the tree to                  
it to make it straightly. Then they make a fence              
around it to prevent people and animals of                    
coming near. They also put up a board there, on that          
they wrote:"Cherish young tree." After that, the             
three often came to watering the tree. Gradually,             
the young tree grew straight and strong. Their teacher learned
this and praised them, "Well do. Children."                  		1.________       
2.________      
3.________          
4.________      
5.________            
6.________                                        
7.________      
8.________          
9.________  
                       
10.________ 
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