What did the author mean by" I am not alone" in paragraph 1?
A.He and his family all didn’t know how to use the machine.
B.His family supported his opinion.
C.Many people faced the trouble as he did.
D.He was a popular guy.
第4题
A.在设计不允许留脚手眼的部位
B.梁或梁垫下及其两侧各5OOm范围内
C.宽度小于lm的窗间墙
D.独立或附墙砖柱,空斗砖墙、加气块墙等轻质墙体
第5题
A.宽度小于1m的窗间墙
B.梁或梁垫下及其两侧各500mm的范围内
C.砖砌体的门窗洞口两侧500mm的范围内
D.过梁上与过梁两端成60角的三角形范围内
第6题
A.宽度小于1m的窗间墙
B.梁或梁垫下及其两侧各500mm的范围内
C.砖砌体的门窗洞口两侧500mm
D.独立或附墙砖柱,空斗砖墙、加气块墙
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