题目内容

下列化合物中除哪个外都能随着脂肪酸119一氧化的不断进行而产生？()

A. H2O
B. 乙酰-CoA
C. 脂酰-CoA
D. NADH+H+
E. FADH2

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文章结尾为什么说“地球自身就是拯救自己的真正‘太阳’”？

A. 因为地球才是宇宙的中心
B. 没有地球太阳就失去意义
C. 地球是宇宙系统的组成部分
D. 没有地球也就不可能有太阳

住宅小区公共性服务收费的费用构成包括()。
①管理、服务人员的工资和按规定提取的福利费
②公共设施,设备日常运行、维修及保养费
③绿化管理费
④清洁卫生费
⑤保安费
⑥办公费
⑦物业管理单位固定资产折旧费
⑧法定税费

A. ①②③④⑤⑥⑦
B. ②③④⑤⑥⑦⑧
C. ①③④⑤⑥⑦⑧
D. ①②③④⑤⑥⑦⑧

People take up hobbies because these activities offer enjoyment, friendship, knowledge, and relaxation. Sometimes they even produce financial profit. Hobbies help people relax after periods of hard work, and provide a balance between work and play. Hobbies also offer interesting activities for persons who have retired. Anyone, rich or poor, old or young, sick or well, can follow a satisfying hobby, regardless of his age, position, or income.
At what time can a person have his hobby？
(13)

A. In his spare time.
B. In his work time.
C. In his workday.
D. In his summer.

电势测量中，电极中有微小电流流过，产生电极电势。()

A. 正确
B. 错误