有机物甲的分子式为C9H18O2,在酸性条件下甲水解为乙和丙两种有机物,在相同的温度和压强下,同质量的乙和丙的蒸气所占体积相同,则甲的可能结构有( )
﹣﹣Tina,turn on ______ radio,please.
﹣﹣OK.( )
a
an
the
/
She came to Wuzhou ______ 2008.( )
at
on
in
to
﹣ Hello! Could I speak to Betty, please?
﹣ Hello! _________( )
A.Can you help me?
B.Are you OK?
C.This is Betty speaking.
﹣How long have you ______ the bike over there?
﹣For two days.( )
A.boughtB.hadC.borrowed
The sports meeting ________ in our school next month.( )
A.will holdB.will be held
C.is held