《天朝田亩制度》是第一次将历代农民对土地的诉求制度化、纲领化。
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中国近代史上第一次资产阶级启蒙运动是洋务运动
A. 对
B. 错
霍乱弧菌的致病物质不包括:
A. 鞭毛
B. 菌毛
C. 多糖荚膜
D. 外毒素
E. 内毒素
霍乱弧菌有多少个血清群?
A. 136
B. 137
C. 138
D. 139
E. 155
For an ideal independent current source, its voltage across ()
A. onlydependsonly on the external circuit and has nothing to do with thecurrent source
B. dependson the current source itselfand has nothing to do with theexternal circuit
C. dependson theexternal circuit and current source itself
D. hasnothing to do with that external circuit and the current source itself
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