单选题 The temperature of a given ideal gas is increased after a process. It can be determined that (1) Heat is absorbed by the system during the process. (2) Positive work is done by the surroundings to the system during the process. (3) The internal energy of the system is added. (4) Heat is absorbed from the universe and positive work is also done outwards. Which statements are true? (A) (1)、(3). (B) (2)、(3). (C) (3). (D) (3)、(4). (E) (4)