【单选题】Questions 21-23 are based on the passage you have just heard.
A.
He was not happy with the new director.
B.
He was not qualified to be an engineer.
D.
He found his job boring.
【单选题】在沉淀柜中为了提高净化效果,重油应预热至 。
【单选题】Questions 21-23 are based on the passage you have just heard.
A.
He enjoyed teaching English.
B.
He wanted to earn more to support his family.
C.
The owner of the school promised him a good position.
D.
He could earn more as a teacher than as a travel agent.
【判断题】星形胶质细胞是神经组织唯一来源于中胚层的细胞,具有吞噬作用。
【单选题】在生命质量论中,人的生命质量分为三类,其中强调人的生命的意义和目的的是
【判断题】星形胶质细胞是神经组织唯一来源于中胚层的细胞,具有吞噬作用。