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【简答题】
为探究铅中毒对大鼠学习记忆的影响，将大鼠分为四组，其中一组饮水，其余三组饮醋酸铅溶液，60天后进行检测。 检测a：用下图水迷宫（池水黑色，大鼠无法看到平台）进行实验，大鼠从入入水，训练其寻找水面下隐蔽平台，重复训练4天后撤去平台，测定大鼠从入到达原平台水域的时间。 检测b：测定脑组织匀浆铅含量及乙酰胆碱酯酶（AChE）活性。AChE活性检测原理：AChE可将乙酰胆碱（ACh）水解为胆碱和乙酸，胆碱与显色剂显色，根据颜色深浅计算酶活性。 ACh是与学习记忆有神经，该由突触前膜释放进入（），与突触后膜上的受体结合，引发突触后膜（）变化。ACh发挥效应后在（）酶的催化下水解，本实验是通过检测单位时间内（）的生成量，进而计算该酶的活性。
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参考答案：
举一反三
【简答题】Byronic hero
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【简答题】Tragic hero
查看完整题目与答案
【单选题】What statement is FALSE for “concepts”?
A.
Concepts include members sharing common attributes.
B.
Concept is based on observation and supports facts.
C.
Concepts represent a group of objects, people, events, or symbols of two or more members.
D.
Concepts include members identified by a name or label.
查看完整题目与答案
【多选题】不适宜有较多渗出液皮肤使用的基质
A.
油脂性基质
B.
O/W型乳剂基质
C.
卡波姆
D.
羧甲基纤维素钠
E.
甘油明胶
查看完整题目与答案
【多选题】不适宜有较多渗出液皮肤使用的基质是
A.
油脂性基质
B.
O/W型乳剂基质
C.
卡波姆
D.
羧甲基纤维素钠
E.
甘油明胶
查看完整题目与答案
【单选题】______ , he remains modest.
A.
Hero as be is
B.
Because he is a hero
C.
A hero as he is
D.
As he is a hero
查看完整题目与答案
【单选题】Which of the following examples about hero or an anti-hero is NOT TRUE?
A.
Daniel Defoe’s Robinson Crusoe, a character capable of heroic deeds, is properly called a hero.
B.
Ah Q in Lu Xun's "The True Story of Ah Q" is an anti-hero.
C.
The subtitle of Vanity Fair “A Novel without a Hero” indicates that there is no main character in the story.
D.
In 20th-century literature, most protagonist are likely to be anti-heroes.
查看完整题目与答案
【单选题】The manager of the company asked ________.
A.
What is the hero’s name.
B.
what the hero’s name was
C.
What was the hero’s name.
D.
what the hero’s name is
查看完整题目与答案
【单选题】How to define hero?
A.
Hero must sacrifice life
B.
Hero must do something that everyone knows.
C.
Hero is willing to save others in trouble and showing great courage when others hesitate or fear
D.
Hero is someone who must not hesitate a little in the emergency.
查看完整题目与答案
【单选题】The cowboys' job was______.
A.
to be a hero in real life
B.
to be a hero of the movie
C.
to take care of cattle
D.
to be a dangerous rusder
查看完整题目与答案
相关题目：
【简答题】Byronic hero
查看完整题目与答案
【简答题】Tragic hero
查看完整题目与答案
【单选题】What statement is FALSE for “concepts”?
A.
Concepts include members sharing common attributes.
B.
Concept is based on observation and supports facts.
C.
Concepts represent a group of objects, people, events, or symbols of two or more members.
D.
Concepts include members identified by a name or label.
查看完整题目与答案
【多选题】不适宜有较多渗出液皮肤使用的基质
A.
油脂性基质
B.
O/W型乳剂基质
C.
卡波姆
D.
羧甲基纤维素钠
E.
甘油明胶
查看完整题目与答案
【多选题】不适宜有较多渗出液皮肤使用的基质是
A.
油脂性基质
B.
O/W型乳剂基质
C.
卡波姆
D.
羧甲基纤维素钠
E.
甘油明胶
查看完整题目与答案
【单选题】______ , he remains modest.
A.
Hero as be is
B.
Because he is a hero
C.
A hero as he is
D.
As he is a hero
查看完整题目与答案
【单选题】Which of the following examples about hero or an anti-hero is NOT TRUE?
A.
Daniel Defoe’s Robinson Crusoe, a character capable of heroic deeds, is properly called a hero.
B.
Ah Q in Lu Xun's "The True Story of Ah Q" is an anti-hero.
C.
The subtitle of Vanity Fair “A Novel without a Hero” indicates that there is no main character in the story.
D.
In 20th-century literature, most protagonist are likely to be anti-heroes.
查看完整题目与答案
【单选题】The manager of the company asked ________.
A.
What is the hero’s name.
B.
what the hero’s name was
C.
What was the hero’s name.
D.
what the hero’s name is
查看完整题目与答案
【单选题】How to define hero?
A.
Hero must sacrifice life
B.
Hero must do something that everyone knows.
C.
Hero is willing to save others in trouble and showing great courage when others hesitate or fear
D.
Hero is someone who must not hesitate a little in the emergency.
查看完整题目与答案
【单选题】The cowboys' job was______.
A.
to be a hero in real life
B.
to be a hero of the movie
C.
to take care of cattle
D.
to be a dangerous rusder
查看完整题目与答案
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