问题
单项选择题
耐冻融性能试验过程中如需中断试验，应（）
A.停下来，下次继续做
B.取出试样，静置实验室
C.试样放置于-20℃±2℃的冰箱中
D.试样浸泡在水中
答案
参考答案：C
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耐冻融性能试验过程中如需中断试验，应（）
A.停下来，下次继续做
B.取出试样，静置实验室
C.试样放置于-20℃±2℃的冰箱中
D.试样浸泡在水中
参考答案：C
It was a cloudy Saturday afternoon. A group of birds were having a great time 36 food and playing on the main road. All of a sudden, a big truck sped through… A 37 thing happened. Birds could 38 , too. Although this bird had already 39 , another bird flew over to her immediately, just like a family member, unable to accept the 40 . Not long after that, another car passed by quickly, 41 the dead bird’s body to whirl(旋转) with the wind. The male bird 42 the movement. As if she was still alive, he 43 flew beside her again. He stared at her as if he was asking, “ 44 are you not getting up?” 45 , she was no longer able to hear him. At the same time, he was trying to lift her up. He, 46 , was unable to bear the burden. Another car soon passed by. He quickly 47 . Once the car had gone, he came down again. Although other birds told him that it was 48 , he never gave up. He was trying his best to lift her up to 49 her flying again. Another car passed by, and her dead body whirled again as if she was still 50 and trying to fly. He had used all of his 51 , but he was too weak. The 52 , who was taking photos of the scene, said he couldn’t shoot any more. He was so 53 that the living bird was going to be hurt by passing cars. So he picked up he dead bird and left it at the 54 . The living one still stayed at a nearby tree as if he was crying with his singing and 55 to leave.
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