问题
选择题
欲称出约260g物品的质量,应顺次往天平右盘里添加的砝码是[ ]
A.10g 50g 200g
B. 200g 50g 10g
C.100g 100g 50g 10g
D.10g 50g 100g 100g
答案
B
欲称出约260g物品的质量,应顺次往天平右盘里添加的砝码是[ ]
A.10g 50g 200g
B. 200g 50g 10g
C.100g 100g 50g 10g
D.10g 50g 100g 100g
B