The absorption intensity on an absorption spectrum tells us ( ) A: energy associated with a particular excitation. B: the ease of transition. C: the concentration of the absorbing part of the molecule. D: both b and c. E: both a and c.

​The efficiency of a material in absorbing heat is described by heat capacity​

absorbing is enjoyable and interesting and holding your attention for a long time.（)

The main technical fields of intelligent power generation are () . A: Renewable Energy; New Energy; Large Capacity Energy Storage<br/>Application B: Conventional Energy; Renewable Energy; Clean energy C: Conventional Energy; Renewable Energy; Clean Energy D: New Energy; Clean Energy; Large Capacity Energy Storage Application

The main technical fields of intelligent power generation are （ ） 。 A: Conventional Energy; Renewable Energy B: New Energy; Clean Energy; Large Capacity Energy Storage Application C: Conventional Energy; Renewable Energy; Clean Energy D: Renewable Energy; New Energy; Large Capacity Energy Storage Application

Plants()nutrientsfromthesoil. A: absorb B: absorbing C: absorbs D: isabsorbed

The system is expanded from equilibrium state a to equilibrium state b in the process of I, absorbing 500J of heat, working externally 400J; Then it is compressed to the original state a in the process of II, releasing heat 300J outward. Then, in the process of II, the change of the internal energy is[img=178x135]17e0b762b3b1660.png[/img] A: -100J B: 100J C: 200J D: -200J

【多选题】Which of the following energy are storable A. photo energy B. potential energy C. sound energy D. chemical energy

Which of the following belongs to clean and renewable energy? A: Geothermal energy B: Solar energy C: Wind energy D: Nuclear energy

Apparent metabolizable energy（AME）is the remaining energy after subtracting（ ）from the gross energy. A: Fecal energy B: Urine energy C: Metabolizable fecal energy D: Gas energy E: Endogenous urine energy