巴赫的《F大调勃兰登堡协奏曲》共分()个乐章
A.五
B.四
C.二
D.三
参考答案:D
There's ______with my bike.I'm sorry I'm late.
A.wrong anything
B.something wrong
C.anything wrong
D.wrong something
只用酚酞试液就能鉴别的一组是( )
A.NaOH、Ca(OH)2、HCl
B.NaOH、H2SO4、NaCl
C.HCl、H2SO4、NaOH
D.NaOH、NaCl、NaNO3