2020-year ( [birthday] ) >=18 and 2020-year ( [birthday] ) <=20< /div>
B.
2020-year ( [birthday] ) >=18 or 2020-year ( [birthday] ) <=20< /div>
C.
year( now( ) )- year ( [birthday] ) >=18 and year( now( ) )- year ( [birthday] ) <=20< /div>
D.
year( now( ) )- year ( [birthday] ) >=18 or year( now( ) )- year ( [birthday] ) <=20< /div>
【单选题】4米比0.5米少百分之几?正确列式是 [ ]
【单选题】4米比0.5米少百分之几?下面列式计算正确的是 [ ]
【单选题】在管理学领域,继X理论、Y理论后提出Z理论的是日裔美国管理学家__________。
【简答题】计算我最棒. 0.4×0.8= 0.4×0.4= 4.2×10= 0.07×0.8= 9.2×0.01= 0.83×100= 0.5×0.02= 10.12×0.2=