A：南部沿海
B：华北平原
C：东北平原
D：长江中下游平原
人们对黄豆加工，做硬了是豆腐干，做稀了是豆腐脑，做薄了是豆腐皮，做没了是豆浆，放臭了是臭豆腐！这启示我们（ ）
①黄豆浑身都是宝，只要加工就会有价值②黄豆在市场运动的过程中才会产生价值③黄豆的多种功效，源于市场的高效配置④黄豆的自然属性是价值产生的物质载体
资*源%库
cook, on, do, live, busy, read, play, about, clean, weekend
Hello! My name is Zhang Ming. I ____ in Qingdao. I am a student. Do you want to know about my ____? I'm very happy ____the weekend. I can ____many things(事情). Usually I do my homework and ____books. Sometimes I ____the rooms and ____dinner with my mum. I often watch TV and ____ pingpong with my father. I'm ____at home. This is my weekend. What ____your weekend?
竖式计算．
106.23﹣9.8=
6.5+31.25+32+12.8=
外来物种侵入到一个新的环境，不可能出现的是（ ）
