问题 多项选择题

可用于肾癌栓塞的方法有

A.明胶海绵栓塞法

B.碘化油栓塞法

C.不锈钢圈栓塞法

D.无水酒精栓塞法

E.联合栓塞法

答案

参考答案:A,B,C,D,E

解析:可用于肾癌栓塞的方法有明胶海绵栓塞法、碘化油栓塞法、不锈钢圈栓塞法、无水酒精栓塞法、联合栓塞法。

下图两个柱状图分别是1952年和1957年我国工农业的产值对比。

(1)请回答,从图中你获得的信息是什么?(至少写出两个)

                                                                                                                                                            

                                                                                                                                                            

(2)从你得出的结论中任选一个说一说这一变化的原因。

                                                                                                                                                            

                                                                                                                                                             

                                                                                                                                                             

单项选择题