在排架结构中,()起围护和承重双重作用。
A.屋盖
B.吊车梁
C.外墙
D.墙梁
参考答案:A
解析:在排架结构中,屋盖起围护和承重双重作用。
The Chinese government, was reported yesterday, will develop a beautiful rural environment farmers can live a happy life.
A.as; where
B.which; how
C.what; whose
D.as; that
男性患者,28岁,夜间突感胸闷,呼吸困难2小时就诊,X线检查如图,最佳的诊断是()
A.气胸
B.肺大疱
C.右侧肺部肿块
D.右侧肺气肿
E.血胸