关于脑神经的叙述错误的是（） A.脑神经共12对，可分为运动神经、感觉神经和混合神经

证券交易的公开原则其核心要求是实现（）。

A.证券账户资料的公开化

B.交易记录的公开化

C.资金账户的公开化

D.市场信息的公开化

Here is a picture of John, a good friend of mine, and I, which was taken at the park.

A                               B     C    D

根据所给音标和汉语提示写出单词，使句意完整正确。

小题1:Here is a birthday ____________ /'preznt/ for you.

小题2:In the morning I don’t have ____________ /I'nʌf/ time to have breakfast at home.

小题3:The fish ____________ (品尝起来) very nice. I like it very much.

小题4:In winter people cover their faces with their___________ (围巾).

小题5:My father likes ___________ (收集) stamps very much. What about your father?

哪些情形下，种子管理机构可以对农作物种子质量纠纷田间现场鉴定申请不予受理？

简述滑移和孪生两种塑性变形机理的主要区别。