基础代谢(BM)
参考答案：基础代谢是维持生命所需要消耗的最低能量，即人体在安静和恒温条件下，禁食12h后，静卧、放松而又清醒时的能量消耗。
They sold their house for only 12000 dollars, so the buyer got a wonderful______.
A．worth
B．cost
C．bargain
D．value
Mary as well as her sisters ___ Chinese in China. [ ]
A. are studying
B. have studied
C. is studying
