图表中()随工作表中数据的改变而发生相应的变化。
A．图例的颜色
B．图表的类型
C．图表标题的位置
D．系列数据的值
参考答案：D
Will was stupefied with exhaustion, and he _____ his head on the grass under one of the trees and slept, but he saw a cat acting strangely.
A．should have lied
B．ought to have lay
C．might have laid
D．must have laid
下冰雹使得路滑而发生车祸，造成人员死亡。此时下的冰雹是( )。
A．风险因素B．风险事故C．损失D．风险
