下列病名中以形态命名的是（） A.蛇头疔 B.翻花疮 C.烂疔 D.发 E.流注

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问题单项选择题

下列病名中以形态命名的是（）

A.蛇头疔

B.翻花疮

C.烂疔

D.发

E.流注

答案

参考答案：A

解析：蛇头疔是根据形态命名。

改错题

短文改错
At first I was not quite willing to sit down and watched the 90minute	1.______
football match.Usually I just checked the results because I thought that was	2.______
dull towatch a game in that players kicked a ball to each other.	3.______
Therefore,my father loves football.During the World Cup in 2006,my dad	4.______
stays up late just to watch his favourite sport. Seeing	5.______
him strong interest in this game of 22 men	6.______
run after a ball,I decided to sit down to watch the game.	7.______
I found game exciting,and my dad explained	8.______
for the rules.We shared our joy.Football is not	9.______
too badly as long as I watch it with my dad!	10._____

问答题

（1）如图（1）-a所示，用铁架台、弹簧和多个已知质量且质量相等的钩码，探究在弹性限度内弹簧弹力与弹簧伸长长度的关系实验．

①为完成实验，还需要的实验器材有：______；

②实验中需要测量的物理量有：______；

③图（1）-b是弹簧所受弹力F与弹簧伸长长度x的F-x图线，由此可求出弹簧的劲度系数为______N/m．图线不过原点的原因是由于______．

（2）某同学用如图（2）-a所示的电路来测定电池的电动势和内阻．

①移动滑线变阻器的滑动片应特别注意防止______．

②该同学测得如表的五组数据．根据数据在答题卡中的图（b）中作出I-U图线，从图线中得到电源的电动势E=______V，内电阻r=______Ω．（结果保留三位有效数字）