调整金刚镗床刀杆回转轴线与夹具位置的准确度时，如在夹具中装夹样件，样件的精度一定要高

任务型阅读。

     Mary，Laura，Jim,，Jack和Jenny各自丢失了一样东西，请你仔细阅读第1-5 题中的他们对各自失物的描述，然后从A到F六个选项中选择相对应的图片(有一项多余)。

( )1. Mary: Hi, my name is Mary. My ID card is lost. My card number is zero three eight five six. 

           Thank you

( )2. Laura: Hi, I'm Laura. I lost my notebook. Its color is yellow. It's not a very big one. Thanks

( )3. Jim: Help, help! I can't find my favorite football. It is white and black. It's a new ball. Please

            help me.

( )4. Jack: I'm Jack Brown. I lost a photo of my family. My father, mother, sister and I are in the photo.

( )5. Jenny: My name is Jenny. I am new here. I am not happy because my black watch is lost. My 

            telephone number is 5649-0983. Please call me.

浮选流程的确定取决于（）以及（）。

井下不得带电搬迁、检修电气设备、电缆、电线。

导赤散，用于治疗（）

A.心火

B.肺火

C.胃火

D.肝火

E.肾火

发电机按总体结构可分为哪几类（）。

A、整体式交流发电机

B、带泵交流发电机

C、无刷交流发电机

D、永磁交流发电机