A:背斜槽部因受挤压,物质不易被侵蚀,常形成山岭。
B:背斜顶部因受张力,物质容易受侵蚀,常形成山谷。
C:向斜槽部因受张力,物质不易被侵蚀,常形成山岭。
D:向斜顶部因受挤压,物质容易被侵蚀,常形成山谷。
下列关于聚落的说法正确的是( )
慕尼黑阴谋的结果和二战取得胜利的主要原因启示我们( )①对邪恶势力绝对不能姑息养奸②在生存挑战面前人类应加强团结 ③召开国际会议不能解决问题 ④战争是解决国际问题的最好手段
句型转换____ She often does her homework at night. (变为否定句)She her homework at night.____ We are cleaning our classroom now. (对划线部分提问) you now?____ He likes pandas because they are very cute. (对划线部分提问) he pandas?____ I think he is in the classroom.(改为否定句)I think he in the classroom.____ Mr Black is a doctor.(对划线部分提问) Mr Black ?