在泥泞的道路上空手行走往往比挑适量担子行走 滑得厉害些,这是由于挑担子后对地面的压力___________ ,从而使摩擦力___________的缘故。
增大; 增大
_____, he together with his families ____ escaped from the shaking building when the earthquake struck Lushan County of Ya’an.
A.Unfortunately; narrowly
B.Fortunately; narrowly
C.Absolutely; thankfully
D.Sadly; hopefully
崇左市的称誉有()
A、中国糖都
B、中国恐龙之乡
C、中国芒果之乡
D、中国锰都