题目内容

外源性抗原降解成多肽后,在胞内与MHC II 类分子结合的部位是

A. MⅡC
B. 高尔基体
C. 细胞膜
D. 内质网腔
E. 细胞核

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树突状细胞处理内源性抗原的特点是

A. 处理后为8~10个氨基酸的肽段
B. 处理后的肽段与MHC I 类分子结合
C. 处理后的肽段与MHC II 类分子结合
D. 提呈给CD4+T细胞
E. 提呈给CD8+T细胞

OnhisfirsttriptoNaples,awell-meaningAmericantouristthankshiswaiterforagoodmealwell-servedbymakingthe"A-Okay"gesturewithhisthumbandforefinger.

A. 对
B. 错

Thethumb-and-forefinger-in a circlegesture,afriendlyoneinAmerica,hasaninsultingmeaninginFranceandBelgium: "You'reworthzero,"whileinChinaandJapanitisaninsultingorvulgarsexualinvitation.

A. 对
B. 错

"Thumbsup" isalwaysapositivegesture in all the countries.

A. 对
B. 错

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