【单选题】【消耗次数：1】
This was the final word and I [] accepted it.
①
/
②
had
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相关题目
【单选题】
He didn’t pass the final examination. He ______ it.
①
must have prepared for
②
ought to prepare
③
ought to have prepared for
④
ought to prepare to
【单选题】
15. While I like the dress very much, I cant afford it. The word “while” means ______.
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when
②
although
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as long as
④
whereas
【单选题】
The fox fell into the _____the hunter had set for it.
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bush
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trap
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trick
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circle
【单选题】
I am unhappy because she accepted my invitation _______ .
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passively
②
extremely
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undoubtedly
④
unwillingly
【单选题】
________the diamond,he had to look for a place to hide it.
①
Having stolen
②
Having been stolen
③
Stolen
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Stealing
【单选题】
____ the diamond, he had to look for a place to hide it.
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Having stolen
②
Having been stolen
③
Stolen
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Stealing
【单选题】
Unbelievable! I have failed my final exam for mathematics!____________
①
Good luck.
②
Cheer up.
③
Go ahead.
④
No problem.
【单选题】
A: I missed yesterdays basketball final. B: [填空]
①
What a pity!
②
Its a good idea.
③
Remember to bring it next time.
④
Im glad to hear that.
随机题目
【单选题】
关于内源性抗原提呈描述错误的是
①
细胞内合成的抗原为内源性抗原
②
病毒感染细胞合成的病毒抗原属内源性抗原
③
肿瘤细胞合成的肿瘤抗原属内源性抗原
④
内源性抗原主要被宿主的APC类细胞加工处理及提呈
⑤
内源性抗原通常被以抗原肽-MHCⅡ类分子复合物形式提呈给CD4+T细胞识别
【单选题】
TD抗原引起的免疫应答的特点是：
①
产生免疫应答的细胞为B1细胞
②
只引起体液免疫应答，不能引起细胞免疫应答
③
可直接作用于T、B淋巴细胞产生免疫应答
④
只引起细胞免疫应答，不能引起体液免疫应答
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可形成记忆细胞
【单选题】
关于 Tc 杀伤靶细胞的作用，下列哪项是正确的?
①
取决于可溶性因子，无需细胞直接接触
②
作用无特异性
③
不需细胞因子参与
④
不需要抗原刺激
⑤
有EDTA存在时不能发生
【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