A:0.4m/s2
B:0.37m/s2
C:2.6m/s2
D:0.43m/s2
Tom made_____ mistakes than Simon in the English test, but he made _________ mistakes than Lucy. Simon made_____ mistakes of the three.
小明同学利用圆珠笔杆、钢丝、细绳制成了如图所示的滑轮组用其匀速提升重物下列说法正确的是( )