建筑物的耐火程度高低,直接取决于建筑构件在火灾高温作用下的耐火性能,即建筑构件的( )和( )。
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两粒扣的西服可以只扣上面的一粒,方便坐下。
A. 对
B. 错
Whatisanothernameofhip-hopmusic?
A. Jazz.
B. Rapmusic.
C. Electronicmusic.
WhichisNOToneofthethreemaintypesofhip-hopdance?
A. Breaking.
B. Tapping.
C. Popping.
Whydopeopleformdancecrewsaccordingtothepassage?
A. Toshowofftheirmovesandtobattleothercrews.
B. Toimprovedancemovesbylearningfromgroupmembers.
C. Tocreatenewdanceformsandtechniques.