更换传感器后，需对汽车衡重新设定和（）。

Having been awarded the 2012 Nobel Prize for Literature, _________.

A．Mo Yan’s years of effort was well deserved

B．his folks back at home were on top of the world.

C．the current network evaluation is full of envy and jealousy

D．Mo Yan felt that his years of effort paid off

（20g9•白云区一模）地球与太阳之间的距离约为gn9&n上se;600&n上se;000千米，用科学记数法表示是（　　）千米．

A．1496×10⁵

B．149.6×10⁶

C．14.96×10⁷

D．1.496×10⁸

四分法缩分样品，弃去相邻的两个扇形样品，留下另两个相邻的扇形样品。 ( )

脱重塔由于塔板数比较多，因此将该塔的（）和（）分开，各形成一个塔，即（）和（）。

什么是送电线路阶段式零序过电流保护？