搜题请搜索小程序“爱下问搜题”
问题 读图填空题

图1是当A接受一定强度刺激后引起F收缩过程示意图。图2为图1中D结构的放大示意图，请回答：

(1)图2结构名称是_______。结构②的名称是_______。

(2)用针刺A时，引起F收缩的现象被称为______，针刺引起疼痛，产生痛觉的部位是______。

(3)当兴奋在神经纤维B上传导时，兴奋部位的膜内外两侧的电位呈________。

(4)在反射弧中，决定神经冲动单向传导的原因是_______。

A．冲动在A中的单向传导 B．在B中的单向传导 C．在D中的单向传导 D．在F中的单向传导

答案

(1)突触     突触后膜

(2)反射     大脑皮层

(3)内正外负 

(4)C

单项选择题

阅读下面短文，从短文后各题所给的四个选项（A、B、C 和 D）中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。

                                    A Heroic Driver

Larry works with Transport Drivers. Inc. One morning in 2009. Larry was  41

along 165 north after delivering to one of his    42   . suddenly, he saw a car with its bright lights on.    43    he got closer, he found 44    vehicle upside down on the road. One more look and he noticed    45    shooting out from under the    46    vehicle. Larry pulled over, set the brake and    47   the fire extinguisher (灭火器). Two good bursts from the extinguisher and the fire was put out.

The man who had his bright lights on    48    and told Larry he had    49    an emergency call. They    50    heard a woman’s voice coming from the wrecked (毁坏的) vehicle.    51   the vehicle, they saw that a woman was trying to get out of the broken window. They told her to stay    52    until the emergency personnel arrived,    53    she thought the car was going to    54   . Larry told her that he had already put out the fire and she should not move    55    she injured her neck.

Once fire and emergency people arrive, Larry and the other man    56    and let them go to work. Then, Larry asked the    57    if he was needed or    58    to go. They let him and the other man go.

One thing is    59   —Larry went above and beyond the call of duty by getting so close to the burning vehicle! His    60    most likely saved the woman’s life.

44（）

A.each

B.another

C.that

D.his
查看答案
填空题

工程外部变形监测中，离较远的稳定点称为（）。
查看答案