已知A点的三面投影,B点在A点上方16、左方20、前方18,求作B点的三面投影。
参考答案:
______ the incorrect operation of the driver in the emergency, the terrible December 8th accident on the Chengzilu Freeway in Sichuan could have been avoided.
A.Apart from
B.Except for
C.Due to
D.But for
产品特色属于产品整体中的()部分。
A、核心
B、附加
C、形体
D、实体