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【单选题】
According to Paragraph 3, the most probable reason for the death of the mice in Aders experiment was that _____.A.
they had been weakened psychologically by the saccharin
B.
the sweetener was poisonous to them
C.
their immune systems had been altered by the mind
D.
they had taken too much sweetener during earlier conditioning
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举一反三
【单选题】电话系统的典型参数是信道带宽为3000Hz，信噪比为30dB，则该系统的最大数据传输速率为（ ）。
A.
3kbit／s
B.
6kbit／s
C.
30kbit／s
D.
64kbit／s
【简答题】23. 下列哪项不在颅底后部 (
)A. 颈静脉孔 B. 舌下神经管 C. 内耳门 D. 颈动脉管内孔 E. 枕骨大孔
【简答题】p____ vt. 促进;提升
【简答题】vt. 促进;提升 p-
【简答题】vt.促进,提升
【简答题】vt. 促进;提升
【简答题】vt. 促进;提升
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