Directions:This section is to test your ability to comprehend short passages. You will hear a recorded passage. After that you will hear five questions.Both the passage and the questions will be read
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8 个月男婴Ⅱ度烧伤时每 1%面积、公斤体重额外丢失补液量为
机泵巡检的主要容是,循环水及各种冲洗管线是否畅通、机封是否泄漏、机泵的声音、振动和出口压力是否正常()
Directions:In this section you will hear a recorded short passage.The passage is printed in the test paper, but with some words or phrases missing. The passage will be read two times. You are required
为公司提供检验、试验和校准服务的外部实验室必须通过ISO/IEC17025或等效的国家标准认可。
A. 错误
B. 正确