问题 单项选择题

对开式滑动轴承由于钨金基体韧性而有抗塑性,抗应变能力强,多用于()

A.低载机械

B.高载机械

C.中载机械

答案

参考答案:B

写句子

把下列句子改为反问句。  

1.周 * * 是人民的好 * * 。   

                                                                                                                                 

2.我们不能忘记党的创始人李大钊同志。  

                                                                                                                                  

3.真理诞生于一百个问号之后。

                                                                                                                                 

4.他的动人事迹令人难忘。

                                                                                                                                  

5.和田维吾尔人热爱土地的程度令人惊叹。

                                                                                                                                  

6.人民不会忘记为国捐躯的英雄。

                                                                                                                                 

单项选择题