我们摄入的食物中必须有一定量的蛋白质，下列叙述不正确的是（ ）
A．蛋白质是组成细胞的基本物质
B．蛋白质分解释放的能量最多，热价最高
C．蛋白质可以为人体供应能量
D．蛋白质在人体内含量仅少于水
蛋白质是构成人体细胞的基本物质，人体的生长发育、组织的更新等都离不开蛋白质，此外，蛋白质还能被分解，为人体的生理活动提供能量，蛋白质主要从瘦肉、鱼、奶、蛋、豆类和谷类等食物中获得；水是人体内不可缺少的重要物质，约占体重的60%---70%，水是细胞的主要组成成分；食物所含的六类营养物质中，能为人体提供能量的是糖类、脂肪和蛋白质，据测定，它们在体内分解所放出的热量分别是：每克糖类平均为17.15千焦，每克脂肪平均为38.91千焦，每克蛋白质平均为17.15千焦．
故选：B
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| ( )1. A. pupils ( )2. A. newspapers ( )3. A. friendship ( )4. A. to ( )5. A. wrong ( )6. A. us ( )7. A. teachers ( )8. A. within ( )9. A. without ( )10. A. lucky | B. trouble B. cards B. knowledge B. for B. right B. them B. happiness B. between B. on B. good | C. room C. lessons C. our C. on C. badly C. others C. friends C. around C. by C. able | D. office D. books D. care D. by D. worse D. yourself D. parents D. among D. with D. unable |
don't.