如图所示,是某种物质的熔化图象,由此可知它的熔点____ ℃,这种物质是____ .熔化过程持续了____ 分钟,在0~4分钟时间内物质处于____ 态,4~8分钟时间内是 ____ 态,8分钟以后是 ____ 态.
周代“当时人便称宗族为“家”,意为与“国”相对立的团体,因而宗族成员常常只知效忠于“家”,而不知效忠于“国”。对该材料理解正确的是( )
提出“师夷长技以制夷”的湖南籍进步思想家是( )
①Do you like the red hat? ____ A. He is under the tree.
②Where's the old man? ____ B. No, they aren't.
③How is the lion? ____ C. No, I don't.
④Are they tigers? ____ D. Yes, it is.
⑤Is this a kite?____ E. It is very strong.