关于右心房的描述错误的是()
A.壁薄腔大
B.以冠状沟与左心房分界
C.其出口为右房室口
D.收纳上、下腔静脉和心脏本身的静脉
E.其后内侧壁下部有卵圆窝
参考答案:B
根据句意或中英文注释,在相应的横线上写出单词的正确形式。(5小题*1=5分)
小题1:There are several (字典) on the shelf. You can choose one.
小题2:Can you answer the question (正确) at once when the teacher asks you?
小题3:The air is (新鲜的) because there are lots of trees around here.
小题4:English Classroom is an _______(education) program on CCTV.
小题5:The audience (鼓掌) at the end of the dancing competition because they enjoyed it very much.
读农业区分布示意图,回答下列问题。(14分)
(1)比较甲、乙两图所示的农业地域类型,并说出两地农业生产特点。(6分)
(2)乙图中,c、d区域种植的粮食作物分别是________和________。(2分)
(3)说出a、b、d三地的气候类型。(3分)
(4)说出b地农业类型形成的主要区位因素。(3分)