新课程改革的心理学依据是（）理论和（）理论．
参考答案：多元智力；建构主义
The little boy is dirty from head to foot because he ___ in the mud all morning.
A．has played
B．is playing
C．has been playing
D．was playing
下列哪种物质参与胆固醇的酯化过程（）
A.LPL
B.HDL
C.LDL
D.LCAT
E.HMGCoA
