（）可以制成各种截面形状，其特点是断面面积小、重量轻但刚性好，广泛地用于轻型钢结构中。
A、焊接型钢
B、模压型钢
C、轧制异型钢材
参考答案：C
看图完成句子。
例: Amy: I like noodles. N-o-o-d-i-e-s.
Zoom: I like 1_____________________________________________.
Sarah: I like 2_____________________________________________.
Wu Yifan: I like cake. C-a-3______________________________________.
Chen Jie: I like 4_____________________________________________.
Mike: I like 5_____________________________________________.
Rabbit: I like 6_____________________________________________.
John: I like 7_____________________________________________.
Zhang Peng: I like 8_____________________________________________.
对防腐涂层的电阻小于10000Ω的被保护体，不宜采用牺牲阳极的方法进行保护。
