买方占据主导权的市场是()
A.买方市场
B.卖方市场
C.国家市场
D.商业市场
参考答案:C
—What do you think of the robots in the future?
—I think they won't _______ do all the work like humans. [ ]
A. can
B. like
C. able to
D. be able to
根据《GB50009-2001建筑结构荷载规范》规定,角钢塔架的整体体型系数μs值要根据()取值。
A.挡风系数
B.迎风面及风向
C.塔架高度
D.塔架截面形状
E.迎风面面积
F.杆件截面形状