如图，一定质量的理想气体从状态a开始，经历过程①、②、③、④到达状态e，对此气体，下列说法正确的是_____
BDE
Weather_______,we’llgooutforawalk.
Hebecameasuccessfulactor________hisfatherneverwas.
Thebasicunitinthestudyofmorphologyis______.
Ifyouarewalkingawayfromaclocktower，youwillhearthetickingoftheclockfadetoapoint________itcannotbeheard.
Generallywecoverinsuranee__definite(明确的)instructionsfromourclients.()
