9.以下几位哪一位不是英国的教育家:
A. 爱尔维修
B. 斯宾塞
C. 赫胥黎
D. 培根
Fill in the blanks with the information you heard.Question: When will the students start their next important life stage?Answer: When they finish their ____________ and get their_________ .
Question: What if the students have no idea what to do in the future?Answer: They don't need to worry because they still have time to figure out ____________.
NPN型三极管导通之后,电位最高的是()极。
A. B
B. C
C. E
D