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【单选题】
有声现象,下列说法不正确的是()
A.
声音是由物体振动产生的
B.
声音不可以在真空中传播
C.
声源振动的频率越高，音调越高
D.
音调越高，说明声源振动的幅度越大
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参考答案：
举一反三
【单选题】有关半抗原,下列描述正确的是
A.
本身没有免疫原性
B.
只能诱导体液免疫
C.
与载体结合才能与抗体结合
D.
具有多个表位
查看完整题目与答案
【单选题】I was the second volunteer on the scene,so there was a pretty good chance I was going to get in.
A.
a piece of good luck
B.
a strong probability
C.
a real danger
查看完整题目与答案
【多选题】How does the writer involve the reader directly in the scene?
A.
By using the second person to address the reader.
B.
By using the present tense.
C.
By using detailed description.
查看完整题目与答案
【简答题】I. Back in New York, I am the head of development for a 1.__________ called Robin Hood. When I'm not fighting 2.__________, I'm fighting fires as the assistant captain of a volunteer fire company. Now...
查看完整题目与答案
【单选题】In "I Wandered Lonely as a Cloud", which stanza shows the poet's switch from the external scene of daffodils to an introverted discription of how the daffodils delight him?
A.
the first stanza
B.
the second stanza
C.
the third stanza
D.
the fourth stanza
查看完整题目与答案
【单选题】In the second scene, the man __________.
A.
mocked the woman
B.
left the woman without a word
C.
opened the car door for the woman
D.
made the woman very angry
查看完整题目与答案
【多选题】关于 Ag的叙述,下列描述不正确的有:
A.
大分子物质必定免疫原性强
B.
化学组成、结构、立体构象、物理性状等都会影响其免疫原性
C.
异物性是构成Ag的首要条件，自身成分不会成为抗原
D.
蛋白质、核酸分子通常都具有较好的免疫原性
E.
半抗原不具有免疫反应性只具有免疫原性
查看完整题目与答案
【多选题】下列对抗原的描述正确的有
A.
具有免疫原性和抗原性的物质称为完全抗原
B.
只有免疫原性而无抗原性的物质称为半抗原
C.
种系关系越远免疫原性越强
D.
脂类物质具有免疫原性
E.
含有酪氨酸的蛋白质免疫原性强
查看完整题目与答案
【简答题】Imagine the following scene: on the grasslands, an elephant stands under an umbrella-like tree. shadow(影子) grows long and thin. In the distance, you can also see a few zebras running here and there. S...
查看完整题目与答案
【单选题】下列有关抗原结合价的描述正确的是:
A.
细菌荚膜多糖是单价抗原；
B.
半抗原是单价抗原；
C.
单体IgG是单价抗原；
D.
能结合一个抗体分子的抗原是单价抗原；
E.
聚合鞭毛素是单价抗原。
查看完整题目与答案
相关题目：
【单选题】有关半抗原,下列描述正确的是
A.
本身没有免疫原性
B.
只能诱导体液免疫
C.
与载体结合才能与抗体结合
D.
具有多个表位
查看完整题目与答案
【单选题】I was the second volunteer on the scene,so there was a pretty good chance I was going to get in.
A.
a piece of good luck
B.
a strong probability
C.
a real danger
查看完整题目与答案
【多选题】How does the writer involve the reader directly in the scene?
A.
By using the second person to address the reader.
B.
By using the present tense.
C.
By using detailed description.
查看完整题目与答案
【简答题】I. Back in New York, I am the head of development for a 1.__________ called Robin Hood. When I'm not fighting 2.__________, I'm fighting fires as the assistant captain of a volunteer fire company. Now...
查看完整题目与答案
【单选题】In "I Wandered Lonely as a Cloud", which stanza shows the poet's switch from the external scene of daffodils to an introverted discription of how the daffodils delight him?
A.
the first stanza
B.
the second stanza
C.
the third stanza
D.
the fourth stanza
查看完整题目与答案
【单选题】In the second scene, the man __________.
A.
mocked the woman
B.
left the woman without a word
C.
opened the car door for the woman
D.
made the woman very angry
查看完整题目与答案
【多选题】关于 Ag的叙述,下列描述不正确的有:
A.
大分子物质必定免疫原性强
B.
化学组成、结构、立体构象、物理性状等都会影响其免疫原性
C.
异物性是构成Ag的首要条件，自身成分不会成为抗原
D.
蛋白质、核酸分子通常都具有较好的免疫原性
E.
半抗原不具有免疫反应性只具有免疫原性
查看完整题目与答案
【多选题】下列对抗原的描述正确的有
A.
具有免疫原性和抗原性的物质称为完全抗原
B.
只有免疫原性而无抗原性的物质称为半抗原
C.
种系关系越远免疫原性越强
D.
脂类物质具有免疫原性
E.
含有酪氨酸的蛋白质免疫原性强
查看完整题目与答案
【简答题】Imagine the following scene: on the grasslands, an elephant stands under an umbrella-like tree. shadow(影子) grows long and thin. In the distance, you can also see a few zebras running here and there. S...
查看完整题目与答案
【单选题】下列有关抗原结合价的描述正确的是:
A.
细菌荚膜多糖是单价抗原；
B.
半抗原是单价抗原；
C.
单体IgG是单价抗原；
D.
能结合一个抗体分子的抗原是单价抗原；
E.
聚合鞭毛素是单价抗原。
查看完整题目与答案
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