要想促进幼儿的道德发展,要先教他们(),从适当的行为开始培养。
参考答案:遵守既定的行为规范
理想气体状态方程式的表达式为()。
A.pT=nRV
B.pV=nRT
C.pR=nTV
D.RT=npV
Such problem ()air, water, and noise pollutions are becoming more and more serious in some big cities.
A.like
B.as
C.of
D.about