【单选题】【消耗次数：1】
正常成人的周围血液中，淋巴细胞占白细胞总数的（
①
A．50-70%
②
B．20～30%
③
C．40-60%
④
D．30～80%
参考答案：
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相关题目
【单选题】
正常成人周围血液中白细胞的数值为（????）
①
A．(2～10)×1012／L
②
B．(4～10)?×109／L
③
C．4000-10000个/毫升
④
D．10-30万个/Ｌ
【单选题】
四格表中，当a=30，b=60，c=40，d=50时，最小理论频数等于（ ）
①
70×110/180
②
90×90/180
③
70×90/180
④
90×110/180
【单选题】
关于T淋巴细胞和B淋巴细胞介导的免疫应答，下列哪项是错误的?
①
对TD抗原的应答都产生记忆细胞
②
对TD抗原的应答都需APC处理和呈递抗原
③
都产生效应产物
④
效应产物的作用均是特异的
⑤
都能形成免疫耐受
【单选题】
已知A、B、C三点坐标分别为（10、20、30）（20、40、60）、（30、60、90），则A、B、C三点______。
①
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随机题目
【单选题】
This is an opportunity to ( )the reputation of the university.
①
improve
②
enhance
③
high
④
lengthen
【单选题】
The ( )situation for this country is promising.
①
overall
②
wholly
③
completely
④
maximal
【单选题】
Theyre trying to ( ) this math problem.
①
figure up
②
figure on
③
figure out
④
figure in
【单选题】
There has been an atmosphere of ( ) around here for a few days now.
①
anticipation
②
greeting
③
knowledgw
④
knowing
【单选题】
The( ) between the parts of the novel is apparent.
①
continuity
②
lasting
③
continuous
④
continue