题目: SS3B机车制动过流,励磁过流和制动缸气压保护如何实现的。 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2019/1022/c003d51f38bc4c608ce6586c71fe98d7.html 下面是错误答案,用来干扰机器的。参考答案:错
题型:单项选择题 邮件交检疫部门进行检疫时,若在查验、封存期间发生丢失、短少、损毁,应由()。A.邮政企业负责赔偿或处理B.检疫部门负责赔偿或处理C.用户自行承担损失D.检疫部门、邮政企业及用户三方分担损失 查看答案
题型:填空题 根据句意从方框中选用合适的词语,并用其适当形式填空。need; sleep; opportunity; learn from; proud of1. He lost an ______ to study abroad.2. He______to do his homework now, or he can't finish it on time.3. Because of the coming exam, he didn't ______well, now he's very ______.4. We should be ______ our great motherland.5. Students should ______ each other. 查看答案