将7—5.2=1.8,1.8×3=5.4,5.4+2.2=7.6,7.6×4=30.4这四个分步算式列成综合算式是()
A:(7-5.2)×3+2.2÷4
B:7-5.2×3+2.2÷4
C:(7-5.2×3+2.2)÷4
D:[(7-5.2)×3+2.2]×4
出自:小学教师资格证