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【单选题】
Ⅳ型超敏反应时,致敏的效应T细胞包括CD4+Th1细胞和CD8+CTL细胞,CD8+CTL细胞介导的细胞毒作用表现为
A.
产生以单核细胞及淋巴细胞浸润为主的免疫损伤的炎症
B.
局部表现为以中性粒细胞浸润为主的炎症
C.
识别靶细胞表面的相应抗原并释放颗粒酶与穿孔素,导致靶细胞溶解破坏或靶细胞凋亡
D.
通过ADCC作用破坏靶细胞
E.
激活补体,形成攻膜复合体,最后溶解细胞
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参考答案：
举一反三
【单选题】Section A Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the ...
A.
He'll be speaking at the end of the meeting.
B.
He was supposed to speak last night instead.
C.
He suddenly decided not to speak.
D.
He already spoke very briefly tonight.
查看完整题目与答案
【单选题】In countries other than their own, most Americans ______.
A.
are isolated by the local people
B.
are not well informed due to the language barrier
C.
tend to get along well with the natives
D.
need interpreters in hotels and restaurants
查看完整题目与答案
【单选题】Among all the public holidays，National Day seems to be the most joyful to the people of the country； on that day the whole country is （ ） in a festival atmosphere．
A.
trapped
B.
sunk
C.
soaked
D.
immersed
查看完整题目与答案
【单选题】The author believes that television in the United Stateshas become important to most people because________ 查看材料
A.
it promotes family unity
B.
it helps them develop their speaking ability
C.
it affects their life in many ways
D.
it challenges society
查看完整题目与答案
【单选题】While the general public tend to agree that animals should be treated humanely, most people are unlikely to give up eating meat or______ goods made from leather and wool.
A.
to wear
B.
wearing
C.
wear
D.
worn
查看完整题目与答案
【多选题】新民主主义革命理论是指导中国革命取得胜利的指导思想,其理论意义在于
A.
它极大地丰富了马克思主义理论
B.
它是马克思主义中国化的重要理论成果，开辟了马克思主义中国化的发展道路
C.
它是从具体实际出发，对中国革命经验的概括和总结，是中国共产党集体智慧的结晶
D.
有力地鼓舞和推动了世界上被压迫民族和被压迫人民反抗帝国主义、殖民主义的斗争
查看完整题目与答案
【单选题】Section A Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the ...
A.
At a hamburger shop.
B.
At a parking lot.
C.
At a laundry.
D.
At a gas station.
查看完整题目与答案
【单选题】Defined most broadly, folklore includes all the customs, beliefs and traditions that people have handed down from generation to generation.
A.
fancifully
B.
liberally
C.
quaintly
D.
dryly
查看完整题目与答案
【单选题】下列哪种细胞与免疫应答无直接关系
A.
B细胞
B.
浆细胞
C.
巨核细胞
D.
组织细胞
E.
肥大细胞
查看完整题目与答案
【单选题】Section A Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the ...
A.
9:13.
B.
8:45.
C.
9:30.
D.
9:15.
查看完整题目与答案
相关题目：
【单选题】Section A Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the ...
A.
He'll be speaking at the end of the meeting.
B.
He was supposed to speak last night instead.
C.
He suddenly decided not to speak.
D.
He already spoke very briefly tonight.
查看完整题目与答案
【单选题】In countries other than their own, most Americans ______.
A.
are isolated by the local people
B.
are not well informed due to the language barrier
C.
tend to get along well with the natives
D.
need interpreters in hotels and restaurants
查看完整题目与答案
【单选题】Among all the public holidays，National Day seems to be the most joyful to the people of the country； on that day the whole country is （ ） in a festival atmosphere．
A.
trapped
B.
sunk
C.
soaked
D.
immersed
查看完整题目与答案
【单选题】The author believes that television in the United Stateshas become important to most people because________ 查看材料
A.
it promotes family unity
B.
it helps them develop their speaking ability
C.
it affects their life in many ways
D.
it challenges society
查看完整题目与答案
【单选题】While the general public tend to agree that animals should be treated humanely, most people are unlikely to give up eating meat or______ goods made from leather and wool.
A.
to wear
B.
wearing
C.
wear
D.
worn
查看完整题目与答案
【多选题】新民主主义革命理论是指导中国革命取得胜利的指导思想,其理论意义在于
A.
它极大地丰富了马克思主义理论
B.
它是马克思主义中国化的重要理论成果，开辟了马克思主义中国化的发展道路
C.
它是从具体实际出发，对中国革命经验的概括和总结，是中国共产党集体智慧的结晶
D.
有力地鼓舞和推动了世界上被压迫民族和被压迫人民反抗帝国主义、殖民主义的斗争
查看完整题目与答案
【单选题】Section A Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the ...
A.
At a hamburger shop.
B.
At a parking lot.
C.
At a laundry.
D.
At a gas station.
查看完整题目与答案
【单选题】Defined most broadly, folklore includes all the customs, beliefs and traditions that people have handed down from generation to generation.
A.
fancifully
B.
liberally
C.
quaintly
D.
dryly
查看完整题目与答案
【单选题】下列哪种细胞与免疫应答无直接关系
A.
B细胞
B.
浆细胞
C.
巨核细胞
D.
组织细胞
E.
肥大细胞
查看完整题目与答案
【单选题】Section A Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the ...
A.
9:13.
B.
8:45.
C.
9:30.
D.
9:15.
查看完整题目与答案
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