如图所示，在探究并联电路中的电流关系时，小明同学用电流表测出_爱下问搜题

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问题选择题

如图所示，在探究并联电路中的电流关系时，小明同学用电流表测出A．B．C三处的电流分别为I_A＝0.5A，I_B＝0.3A，I_C＝0.2A，在表格中记录数据后，下一步首先应该做的是( )

A．整理器材，结束实验　

B．换用不同规格的小灯泡，再测出几组电流值　　

C．分析数据，得出结论　　　

D．换用电流表的另一量程，再测出一组电流

答案

答案：B

在探究并联电路中的电流关系时，小明同学用电流表测出A．B．C三处的电流分别为I_A＝0.5A，I_B＝0.3A，I_C＝0.2A，在表格中记录数据后，下一步首先应该做的是换用不同规格的小灯泡，再测出几组电流值。

完形填空

Once my mother told me a story that in Africa, when an antelope (羚羊) wakes up every morning, the first thing it thinks about is, “I must be 36 to run faster than the fastest lion, or I will be killed.” 37 , a lion wakes from his dream. The first thing the lion thinks about is, “I must be able to catch the 38 antelope, or I will starve to 39 .” So almost simultaneously(同时地), the antelope and the lion get up and start running toward the 40 sun.
This is 41 : full of chances and challenges. Whether you are an antelope or a lion, you must go 42 when the sun rises. For students, it is just the same. If we don’t study hard, sooner or later, we will 43 the other students. At first I didn’t know what the word “exam” 44 . Later, I knew an exam was a kind of 45 . In competitions, there are always winners and 46 . As I grew up, I got to know competition well. In one’s life, there must be competitions, so people can 47 .
Each time I saw children playing games and heard their 48 , I wished I were that age again. 49 , I remembered my parents’ words: You must work very hard for a good future. So I 50 my pen and began to study hard again.
I was still not sure what competition 51 meant. One day, I was 52_in an English-speaking competition. When I went to the stage, I saw other students looking at me kindly. Suddenly I 53 what competition was. It is not as cruel as my teacher and parents told me. In fact, competition is the 54 : it is kind and necessary.
I learned a lot from realizing this 55 . Now I understand better about the world. Competition is important for us all.

A．On the contrary

B．At the same time

C．In other words

D．In the first place

A．fall behind

D．competition

B．participating

B．acknowledged

D．consequence

单项选择题 A1/A2型题

下列对“临终关怀的伦理意义”描述，错误的是（）

A.临终关怀是医学人道主义的重要发展

B.体现了生命神圣论、生命质量论和生命价值论的统一

C.临终关怀已经和安乐死一样成为人类控制死亡过程的重要手段

D.是对医学中无伤原则和有利原则的尊重和实践