A.one can help maintain balance in the“body clock”
B.scientists have worked out“body clock” methods to control body activities
C.body activities are under the control of an unseen force
D.the human body is always in balance
[单选题]A.90~200B.230~350C.370~470D.1150~1800
[单选题]A.C1对应的F1B.C2对应的F2C.C3对应的F3D.C4对应的F4
[单选题]A.甲B.乙C.丙D.丁
[单选题]A.0B.1C.2D.3
[单选题]What will happen if kids are always on their phones?( )A.They will behave b
[单选题]The reason for wind energy being an ideal sustainable energy source is that
[判断题]Renewable energy and distributed generation are not viable in economic term
[判断题]The drugs which helped patients relieve the pain used to have serious side