Although I haven't been there, _____ I know it very well. [ ]
A. but
B. and
C. so
D. /
答案:D
A.a为动滑轮,B端钢缆受到滑轮组的拉力大小约为3G
B.a为动滑轮,B端钢缆受到滑轮组的拉力大小约为G
C.a、c为动滑轮,B端钢缆受到滑轮组的拉力大小约为3G
D.a、c为动滑轮,B端钢缆受到滑轮组的拉力大小约为G
流动资金在每次循环中,表现的占用形态为()。
A.生产储备资金
B.成品资金
C.货币资金
D.未完工产品资金
E.结算资金