A:22.4bacNA L
B:22.4abcNA L
C:22.4acbNA L
D:22.4bcaNA L
(____)(1)A. first B.second C. three
(____)(2)A. classroom B.play C. playground
(____)(3)A. heavy B. high C. school
(____)(4)A. on B.in C. me
(____)(5)A.floor B. push C. swing
划分东西半球的分界线是( )
下列物质性质的表述中,属于化学性质的是( )
— , thanks. I think I can manage.