油品()随着温度升高而减小
A.分子量
B.粘度
C.闪点
D.内能
参考答案:B
Bill was doing a lot of physical exercise to build up his _______.
A.ability
B.force
C.motivation
D.strength
年鉴的特点不包括()。
A.资料性
B.预见性
C.时限性和连续性
D.新颖性