" Hours of rest may be divided into no more than two periods , one of which shall be at least ___in length
A.Five hours
B.Seven hours
C.Six hours
D.Four hours
正确答案是C
" Hours of rest may be divided into no more than two periods , one of which shall be at least ___in length
A.Five hours
B.Seven hours
C.Six hours
D.Four hours
正确答案是C