-- Alice, how do your parents like pop music?
-- _____ my dad ______ my mom likes it. But they both prefer Beijing Opera.
A:Eigher; or
B:Neither; nor
C:Not only; but also
D:Both; and
在干燥的天气里,用塑料梳子梳头发时,头发会随着梳子飘起来,这是因为梳子和头发摩擦时分别带上____电荷,互相____的缘故.
下列不属于生态系统的是( )
读图,完成下列各题.
我会填
①善:共____画,第四笔是____。
②登:共____画,第三笔是____。