碗扣式钢管脚手架一般应沿脚手架外侧满挂封闭式安全密目网,并应与脚手架立杆、横杆绑扎牢固,绑扎间距应不大于030m。在脚手架底部和层间设置水平安全网。()
参考答案:对
With no central government,the island was ruled by kings, a different region of the country.
A.each controlling
B.each controlled
C.each to control
D.each was controlling
油漆主要分为();();()。