一Tom, don't be . You should make your bed every morning.
— Sorry, Dad. I'll do it now.
A:lazy
B:shy
C:careless
D:foolish
君臣礼仪是中国古代政治制度发展的外在表现。图一到图三的变化反映的实质是( )
对细胞内自由水的下列描述中,不正确的是( )