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【单选题】
胸腺依赖性抗原是指A.
在胸腺中产生的抗原
B.
不能产生免疫记忆的抗原
C.
只能引起细胞免疫应答的抗原
D.
能直接激活 B细胞产生体液免疫应答的抗原
E.
只有在 T细胞辅助下，激活B细胞产生体液免疫应答的抗原
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举一反三
【单选题】项目名称的后缀名为 ;原理图文件的后缀名为 ; PCB 文件的后缀名为 。
A.
.PrjPcb;.S chdoc;.P cbdoc
B.
.S chdoc;.P cbdoc ;.PrjPcb
C.
.S chdoc; .PrjPcb ;.P cbdoc
D.
.P cbdoc ;.PrjPcb;.S chdoc
【单选题】The______of our company are to achieve steady growth and become the leader in the field of mobile phone industry.
A.
destinations
B.
treatments
C.
goals
D.
opinions
【单选题】We must seize this opportunity and take proper measures to __________ the growth of our economy. [ ]
A.
accelerate
B.
applaud
C.
overlook
D.
accumulate
【简答题】项目名称的后缀名为 ;原理图文件的后缀名为 ; PCB 文件的后缀名为 。
【单选题】The main measure of economic growth is faulty in that our system of national accounting includes only loss in value of factories and equipment but does not consider loss of natural resources as a nega...
A.
Y
B.
N
C.
NG
【单选题】Human population growth is a menace to nonhuman life forms on our planet.
A.
hindrance
B.
misfortune
C.
catastrophe
D.
threat
【单选题】What is the concept most people have on population growth?
A.
The population is always in constant geometric growth.
B.
Rapid growth is followed by stable growth.
C.
Decelerated growth is following by a decline.
D.
No growth at all.
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