营养素是为了维持生命和健康,保证生长发育和完成各种生理功能,必须不断摄取的某些物质,主要有蛋白质、脂肪、糖类、()、无机盐和()等六类。
参考答案:维生素;水
“义务感、责任感、是非感”属于( )。
A.道德感
B.美感
C.理智感
D.喜悦感
The rich only ______themselves in making money and had no eye for the needs of workers.
A.devoted
B.occupied
C.enjoyed
D.concerned