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【单选题】
一般人在患了麻疹后，基本就不会再患第二次麻疹，这所体现的免疫力的获得方式是（ ）。
A.
自然自动免疫
B.
人工自动免疫
C.
自然被动免疫
D.
人工被动免疫
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【单选题】第二篇 Sleep We all know that the normal human daily cycle of activity is of some 7 - 8 hours’ sleep alternating with some 16 - 17 hours’ wakefulness and that, broadly speaking, the sleep n...
A.
people hate the inconvenience of working on night shifts.
B.
your life is disturbed by changing from day to night routines and back.
C.
not all industries work at the same hours.
D.
it is difficult to find a corps of good night workers.
【单选题】A．CD2、CD3、CD4、CD7、CD8B．CDl0、CDl9、CD20C．CDl6、CD56D．CDl3、CDl4、CDl5、CD33E．TdT、CD33、CD34 T细胞及其肿瘤的免疫标记特征是：
A.
A．
B.
B．
C.
C．
D.
D．
E.
E．
相关题目：
【单选题】第二篇 Sleep We all know that the normal human daily cycle of activity is of some 7 - 8 hours’ sleep alternating with some 16 - 17 hours’ wakefulness and that, broadly speaking, the sleep n...
A.
people hate the inconvenience of working on night shifts.
B.
your life is disturbed by changing from day to night routines and back.
C.
not all industries work at the same hours.
D.
it is difficult to find a corps of good night workers.
【单选题】A．CD2、CD3、CD4、CD7、CD8B．CDl0、CDl9、CD20C．CDl6、CD56D．CDl3、CDl4、CDl5、CD33E．TdT、CD33、CD34 T细胞及其肿瘤的免疫标记特征是：
A.
A．
B.
B．
C.
C．
D.
D．
E.
E．
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