— What will you do this weekend?
— We'll go hiking _________ the weather is good.
A:as soon as
B:as long as
C:as well as
D:as for
设x、y、z为正数,且2x=3y=5z,则( )
化学是材料科学、生命科学、环境科学和能源科学的基础.下列有关说法正确的是( )
社会主义思想道德体系要与( )
____ ____ ____ ____ after lunch?