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【单选题】
中枢淋巴器官特点之一是:A.
较周围淋巴器官发生晚
B.
均以网状细胞和网状纤维为支架
C.
培养效应性T淋巴细胞或B淋巴细胞
D.
淋巴细胞增殖不受抗原直接影响
E.
出生前结构功能尚未发育完善
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皮皮学刷刷变学霸
举一反三
【单选题】Oliver was sent to Mr. Sowerberry, and slept ____ on the first night.
A.
on the bed
B.
by the stove
C.
on a table
D.
by the coffin
【简答题】One day, Mr. Smith is going to take a train to his hometown. When the train starts, one of his shoes falls(落下)onto the ground. The train is running faster and faster and he can’t pick it up. Then he q...
【简答题】Oliver was led to Mr. Sowerberry's house by Mr. Bumble because___________.
【单选题】Where did Nancy meet Mr. Sowerberry and tell him the situation of Oliver ?
A.
In a park.
B.
In a pub.
C.
Under London Bridge.
D.
On a bus.
【简答题】Mr. Sowerberry trained Oliver in the undertaking business because___________.
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