7,8,11,20,47,( )
A.69
B.128
C.108
D.87
参考答案:B
—Oh, I've just locked my keys in my office again.
—You're always so careless, but ________ let's see what we can do about it.
A.otherwise
B.therefore
C.anyway
D.besides
维生素D的生理功能主要表现为()
A.促进骨与软骨的骨化
B.提高小肠对钙、磷的吸收和转运
C.调节血钙平衡
D.促进肾脏对钙、磷的重吸收
E.以上都是