下列关于神经兴奋的叙述,错误的是( )
A:神经细胞外侧局部电流的方向与兴奋传导的方向相同
B:兴奋部位细胞膜两侧的电位表现为膜内为正、膜外为负
C:突触前膜释放的神经递质能够引起突触后膜的兴奋或抑制
D:细胞膜内外K+、Na+分布不均匀是神经纤维兴奋传导的基础
句型转换____ She often does her homework at night. (变为否定句)She her homework at night.____ We are cleaning our classroom now. (对划线部分提问) you now?____ He likes pandas because they are very cute. (对划线部分提问) he pandas?____ I think he is in the classroom.(改为否定句)I think he in the classroom.____ Mr Black is a doctor.(对划线部分提问) Mr Black ?
下列疾病中,是传染病的是( )
能够被1,2,3,4,5,6,7,8,9,10整除的最小正整数为:( )
阅读下列图文资料,回答问题.
共建“21世纪海上丝绸之路”将让中国与世界更加紧密地联系在一起,推动更多国家和地区开展全方位合作.
下列有关彼得一世改革背景的叙述,错误的是( )