非金属套电缆铠装前外径为62.5mm,应选用相应钢带规格为()(厚度mm×宽度mm)
A.0.5×30
B.0.5×35
C.0.5×45
D.0.8×60
参考答案:C
Those two ______ are both from Germany.[ ]
A.woman tourists
B.women tourists
C.women tourist
D.woman tourist
企业经营活动的中心是( )。
A.提高产品价格
B.提高经济效益
C.满足顾客需求
D.降低生产成本