问题 选择题

据报道,5月28日参观2010上海世博会的人数达35.6万,用科学记数法表示数35.6万是(  )

A.3.56×101

B.3.56×104

C.3.56×105

D.35.6×104

答案

35.6万=356 000=3.56×105.故选C.

多项选择题
综合

下图是黄土高原的景观图,读图回答:

(1)请你用简短的语言概括该高原的地表形态特征。

                                                                                                                                                    

(2)请根据(1)项思考:黄土高原主要的生态环境问题是什么?你认为治理的主要办法有哪些?

                                                                                                                                                                

                                                                                                                                                                

(3) “地上河”分布在黄河的哪个河段?形成原因是什么?