下列是烃的衍生物中四个常见分子的比例模型,其中表示乙醛分子的是( )
A.
B.
C.
D.
答案:D
Many of the one-family children are so accustomed to ______ that they react violently when they hear something different.
A.be praised
B.being praised
C.praising
D.praise
1998以来,我国政府为扩大内需、促进经济发展,实施了积极的财政政策,其主要手段是()
A.提高税率
B.增加财政转移支付
C.提高中央财政收入占全国财政收入的比例
D.增发国债