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【单选题】
猪瘟病毒感染免疫中,可特异性杀伤受病毒感染细胞的是:()(551-16)
A.
自然杀伤细胞
B.
细胞毒性T细胞
C.
迟发性变态反应性T细胞
D.
B细胞
E.
巨噬细胞
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参考答案:
举一反三
【判断题】This is a unified paragraph: I think the popularity of horror films with s is due to agers' desires to test their limits in the real world, to see how far they can go before they get scared an...
A.
正确
B.
错误
【判断题】合成材料的出现弥补了天然材料的不足?
A.
正确
B.
错误
【简答题】Laura: What ________ (going to do) tonight, Maggie?Maggie: I'm going to go to Lisa's house.2. Laura: What time ________ (will be) home?Maggie: I'll be home before 11.3. Paul: What is Frankie going to ...
【单选题】Mom and Dad are ______ movie lovers. They have many hobbies in common.
A.
neither
B.
either
C.
none
D.
both
【单选题】能将Cr3+和Zn2+离子分离的溶液是( )
A.
NaOH
B.
NH 3 ·H 2 O
C.
Na 2 CO 3
D.
NaHCO 3
【判断题】Yang Gang was not from the disaster area.
A.
正确
B.
错误
【单选题】Yang Gang, ________ survived the earthquake , was one of the volunteers.
A.
who
B.
whose
C.
which
【单选题】Mom and Dad are ____ movie lovers. They have many hobbies in common. [     ]
A.
both
B.
either
C.
neither
【单选题】能将Cr3+和Zn2+离子分离的溶液是
A.
NaOH
B.
NH3∙H2O
C.
NaHCO3
D.
Na2S
【单选题】发端于工业领域,非常适合曲面建模的软件是()
A.
SketchUp
B.
Rhino
C.
Photoshop
D.
Solidworks
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