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【单选题】
关于MHC-Ⅱ类分子的正确叙述是A.
调控体内体液免疫和细胞免疫应答
B.
同血清中补体水平有关
C.
CTL识别抗原性靶细胞的标志
D.
参与杀伤病毒感染细胞和恶变细胞
E.
识别和呈递内源性抗原
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反馈参考答案：
举一反三
【单选题】原文:Many people being absent, the meeting had to put off.译文:____这么多人缺席,会议就只好延期召开。
A.
虽然
B.
既然
【简答题】起运国(地区)
【简答题】由专职司机驾驶轿车时,通常仍讲究右尊左卑,但一般以 排为上, 排为下。
【简答题】“起运国(地区)”栏：
【简答题】“起运国(地区)”栏：
【单选题】— I can't find Dad. Where is he? — I'm not sure. He be in the study room. [ ]
A.
must
B.
may
C.
need
【单选题】He ___ be in the garden.He must be in the room. ‘
A.
can't
B.
mustn’t
C.
will not
D.
may not
【简答题】Walt Disney was born in Chicago in 1901. when he was young, he lived in Kansas City. He wanted to be . Disney was very poor. He drew pictures in his father’s garage(车库). One day a mouse came into the ...
【简答题】原文:Many people being absent, the meeting had to put off.译文:____这么多人缺席,会议就只好延期召开。
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