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题目：
多选题
下列药物中,哪些药物是半合成红霉素的衍生物
- A. 阿齐霉素
- B. 甲砜霉素
- C. 克拉霉素
- D. 泰利霉素
答案：
<查看本题扣1积分>
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润滑的作用在于消除磨损、减少发热。（）
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新购设备验收程序是什么？
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引起血清碱性磷酸酶升高的骨病是（）
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趵突泉bào tū quán
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从胎儿期→5~7岁之前，骨髓腔充满红骨髓，具有造血机能，之后被脂肪组织代替变成黄骨髓。()
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何谓变形？变形过程分哪几个阶段？
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根据独立审计准则，独立审计的总目标是对会计报表的（）发表意见。
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Enids wedding dress arrived at five oclock in the evening: just seventeen hours before her marriage! "I must try it【C1】______, mother!" She cried, as she ran up stairs. Three minutes later Enids cries【C2】______her mother to her. The dress was much【C3】______big for her. It was baggy(鼓鼓囊囊的)in the front, and the neckline looked all wrong. Enid was in【C4】______. "Take it back to the dressmakers," Mrs. Bale said. "She must【C5】______it tonight. Hurry now. Take it off and go. " The dressmakers shop was closed. "CLOSED FOR ONE WEEKS HOLI DAY", said a【C6】______on the door. Fresh tears【C7】______to Enids eyes. She ran home again to her mother. "This is【C8】______," Mrs. Bale said. "But what are we going to do? Shall I ask Mrs. Peters to help? She was a dressmaker【C9】______. Im sure she could help. " Mrs. Peters was brought【C10】______and began work. She could see what was【C11】______. She had to take in a lot of material at the front, and that was a【C12】______job. Then she altered the neckline—in fact she made it【C13】______. At ten oclock the work was finished, and Enid put on the dress and found it【C14】______her beautifully. The three women were having a cup of tea【C15】______the doorbell rang. Mrs. Bale answered it and looked【C16】______the worried eyes of a plump(丰满的)young woman. The woman was carrying a large box. "Does Miss Enid Bale live here?" she asked【C17】______. "Yes, shes my daughter. " "Oh, Im glad Ive【C18】______you! There has been a【C19】______. Your daughter has my wedding dress, and Ive got hers. And Im getting married tomorrow!" She【C20】______out the box to Mrs. Bale.【C1】A．onB．withC．outD．in
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减少散热损失的方法有哪些？