题目:
氯喹的抗疟原虫原理是什么()
A.抑制子孢子侵入肝细胞
B.抑制疟原虫对氨苯甲酸代谢
C.抑制疟原虫叶酸代谢
D.抑制疟原虫产生配子体
E.直接杀灭红细胞内疟原虫
答案:
参考答案:E
氯喹的抗疟原虫原理是什么()
A.抑制子孢子侵入肝细胞
B.抑制疟原虫对氨苯甲酸代谢
C.抑制疟原虫叶酸代谢
D.抑制疟原虫产生配子体
E.直接杀灭红细胞内疟原虫
参考答案:E
阅读下列资料并回答问题:
我国生物资源非常丰富。据《中国生物多样性国情研究报 告》统计,我国哺乳类、鸟类和鱼类的种数都居世界前列,已知种数分别占世界的13.39%、14.25%和20.3%。生活中可以见到:蚯蚓在土中蠕动、蝴蝶在花丛中飞舞、鱼儿在水中游动、红嘴鸥在空中飞翔、小白兔在草地上跳跃……这无一不打动着人们的情感,唤起人们对犬自然的无限遐想和热爱。
(1)蚯蚓在土中蠕动依靠肌肉和__________的配合。红嘴鸥的前肢特化为__________,具有飞翔能力。
(2)资料反映了生物__________的多样性。建立濒危物种种质资源库的意义在于保护__________的多样性。
(3)请写出一种我国特有的珍稀水生哺乳动物的名称__________。
一束几种不同的离子,垂直射入有正交的匀强磁场和匀强电场区域里,离子束保持原运动方向未发生偏转,接着进入另一匀强磁场,发现这些离子分成几束,如图所示。对这些离子,它们的( )
A.动能一定各不相同
B.比荷一定各不相同
C.电量一定各不相同
D.质量一定各不相同
阅读理解。
Napoleon, as a character in Tolstoy's War and Peace, is more than once described as having
"fat little hands". Nor does he "sit well or firmly on the horse". He is said to be "undersized", with
"short legs" and a "round stomach". The issue here is not the accuracy of Tolstoy's description-it
seems not that far off from historical accounts but his choice of facts: other things that could be
said of the man are not said. We are meant to understand the difference of a warring commander
in the body of a fat little Frenchman. Tolstoy's Napoleon could be any man wandering in the streets
and putting a little of powdered tobacco up his nose-and that is the point.
It is a way the novelist uses to show the moral nature of a character. And it turns out that,as
Tolstoy has it,Napoleon is a crazy man. In a scene in Book Three of War and Peace,the wars having
reached the critical year of 1812,Napoleon receives a representative from the Tsar (沙皇) ,who has
come with peace terms. Napoleon is very angry:doesn't he have more army? He,not the Tsar,is the
one to make the terms. He will destroy all of Europe if his army is stopped. "That is what you will have
gained by engaging me in the war!" he shouts. And then, Tolstoy writes,Napoleon "walked silently
several times up and down the room,his fat shoulders moving quickly".
Still later, after reviewing his army amid cheering crowds,Napoleon invites the shaken Russian
to dinner."He raised his hand to the Russian's... face," Tolstoy writes,and "taking him by the ear pulled
it gently. . . ". To have one'-s ear pulled by the Emperor was considered thegreatest honor and mark
of favor at the French court."Well,well,why don't you say anything?" said he,as if it was ridiculous in his
presence to respect any one but himself, Napoleon.
Tolstoy did his research, but the composition is his own.
1. Tolstoy's description of Napoleon in War and Peace is__________.
A. far from the historical facts
B. based on the Russian history
C. based on his selection of facts
D. not related to historical details
2. Napoleon was angry when receiving the Russian representative because__________.
A. he thought he should be the one to make the peace terms
B. the Tsar's peace terms were hard to accept
C. the Russians stopped his military movement
D. he didn't have any more army to fight with
3. What did Napoleon expect the Russian representative to do?
A. To walk out of the room in anger.
B. To show agreement with him
C. To say something about the Tsar.
D. To express his admiration.
4. Tolstoy intended to present Napoleon as a man who is__________.
A. ill-mannered in dealing with foreign guests
B. fond of showing off his iron will
C. determined in destroying all of Europe
D. crazy for power and respect
5. What does the last sentence of the passage imply?
A. A writer doesn't have to be faithful to his findings.
B. A writer may write about a hero in his own way.
C. A writer may not be responsible for what he writes.
D. A writer has hardly any freedom to show his feelings.
风热外袭型麦粒肿的针灸治疗,可在基础处方的基础上再加()
A.曲池、内庭
B.行间、支沟
C.承泣、四白
D.太阳、鱼腰
E.攒竹、合谷
潜在消费需求的类型包括()。
A.小商品充裕型的潜在需求
B.适销商品短缺型的潜在需求
C.对商品不熟悉型的潜在需求
D.市场竞争倾向型的潜在需求
E.购买力不足型的潜在需求