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【多选题】
关于经验T细胞的“限制性护照”分子,描述正确的是A.
经验T细胞表达的细胞粘附分子取决于这些经验T细胞被激活的位置。
B.
激活的经验T细胞再循环时，它们通常离开血液，再次进入与最初遇到抗原时相同类型的二级淋巴器官。
C.
经验T细胞也携带“战斗护照”(黏附分子)，指示他们在入侵者发起感染的地方离开血液，进入“战场”。
D.
引流皮肤的淋巴结内的激活的经验T细胞，其上调表达的受体分子可促使它们回到皮肤-引流淋巴结。
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反馈参考答案：
举一反三
【单选题】What did the man think he had given to the woman?
A.
An information card of a restaurant.
B.
His own business card.
C.
Mr. Cooper's business card.
D.
A note of what to do.
【单选题】关于受托代销业务的流程顺序正确的是( )
A.
受托代销入库单——开具销售清单——受托代销结算——受托代销发票
B.
开具销售清单——受托代销入库单——受托代销结算——受托代销发票
C.
受托代销入库单——开具销售清单——受托代销发票——受托代销结算
D.
受托代销发票——受托代销入库单——开具销售清单——受托代销结算
【简答题】There was a man. He had four sons. He wanted his sons to learn not to judge things too quickly. So he sent them each on a quest(探索)in turn, to go and look at a pear tree that was far away. The first s...
【单选题】Why didn't he eat anything?
A.
He had forgotten to bring any food with him.
B.
He was afraid he would fall asleep if he should eat anything.
C.
He was not hungry.
D.
It was difficult to eat while flying a plane.
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