单项选择题
A.990mm B.1070mm C.1190mm D.1010mm
A.1378mm B.1348mm C.1308mm D.1338mm
A.(1)A12@200;(1)A10@200 B.(1)A12@200+(1)A10@200 C.(1)A12@200/(1)A10@200 D.(1)A12@200*(1)A10@200