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【单选题】
科学揭示燃烧现象的是（）A.
B.
牛顿
C.
拉瓦锡.
D.
爱迪生
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反馈参考答案：
举一反三
【单选题】关于T淋巴细胞介导的细胞免疫，下列哪项是错误的
A.
由TD抗原刺激产生
B.
有免疫记忆
C.
其产生的效应分子作用均是特异性的
D.
能经效应T淋巴细胞被动转移
E.
有克隆扩增
【简答题】On deciding to buy your first home, you’re likely to be excited and full of enthusiasm ( 热情 ). However, you should take care to plan well and understand the process to avoid any unexpected problems. H...
【单选题】When you the train, be sure to take with you your baggage.
A.
get off
B.
get on
C.
get up
【简答题】On deciding to buy your first home, you’re likely to be excited and full of enthusiasm ( 热情 ). However, you should take care to plan well and understand the process to avoid any unexpected problems. H...
【单选题】Be sure to take your personal belongings before getting off the train.
A.
陈述句
B.
疑问句
C.
祈使句
D.
感叹句
【单选题】请判断下面的句子是陈述句、疑问句、祈使句还是感叹句 。 Be sure to take your personal belongs before getting off the train.
A.
陈述句
B.
疑问句
C.
祈使句
D.
感叹句
【简答题】On deciding to buy your first home, you are likely to be excited and full of enthusiasm. However, you should take care to plan well and understand the process to avoid any unexpected problems. Here ar...
【单选题】关于 T 淋巴细胞介导的细胞免疫 , 下列哪项是错误的?
A.
由TD抗原引起
B.
抗原肽-MHC复合物与TCR结合产生第一信号
C.
CD3传递第二信号
D.
TCR识别抗原受MHC限制
E.
需抗原提呈细胞参与
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