【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】飞机上,一位老人无法自主排尿,膀胱可能胀破。机上乘客张红医生和肖占祥医生自制装置,用嘴吸尿 37 分钟救人。他们 的事迹启示我们 1 生命的 价值在于能挽救他人生命 2 生命是 珍贵 的 , 生命意义是具体的 3 生命的意义需要自己 奉献 和创造 4拒绝冷漠,设身处地地善待他人
【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.
【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。