个人的心理活动与行为的基本动力,即个体和社会的客观需求在人脑中的反映是( )。
A.动机
B.兴趣
C.需要
D.表情
参考答案:C
Everyone knows that _______ is dangerous to play with fire, but _______ is difficult is to prevent children from playing with fire.
A.it, it
B.what, what
C.it, what
D.what, it
体重70kg的男性,含有的蛋白质量为()
A.10~11kg
B.1.2~1.5g/(kg·D.
C.2.0~2.5g/(kg·D.
D.20g
E.50g