当有六级及以上风、（）、雨或雪天气时应停止脚手架搭设与拆除作业。
参考答案：浓雾
根据图片完成下面的语段。
Look! This is my bedroom. The _____________ is red. I have a _____________
and a _____________ . There is a ball under the _____________ . It's near the
_____________ . I like my bedroom.
影响行业内企业竞争激烈程度的因素是
A．卖方集中程度
B．企业间的实力是否相当
C．买方集中程度
D．替代品的威胁
is red. I have a _____________ 
. There is a ball under the _____________ 
. It's near the 
. I like my bedroom.