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【单选题】
You are moving a gas free tank barge to dry dock for repairs．The barge must have onboard a valid ______．A.
Gas Free Certificate
B.
Certificate of Inspection
C.
Permit to Proceed and Hot Work Permit
D.
All of the above
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举一反三
【多选题】紫外-可见分光光度计根据光路数目和波长种类不同分为
A.
单光束分光光度计
B.
单波长双光束分光光度计
C.
双波长分光光度计
D.
三波长分光光度计
E.
二元分光光度计
【简答题】题目及相关的知识在word文档里 第4周上机课作业.docx 运行结果拍照放word文档和源文件压缩上传。 说明:原则上一周内完成,做为期末考核的参考 第2次上机作业2020
【简答题】题目及相关的知识在word文档里 第2周上机课作业.docx 运行结果拍照放word文档和源文件压缩上传。 说明:原则上一周内完成,做为期末考核的参考
【简答题】题目及相关的知识在word文档里 第3周上机课作业.docx 运行结果拍照放word文档和源文件压缩上传。 说明:原则上一周内完成,做为期末考核的参考
【简答题】根据光路数目,分光光度计分为 _______ 和 _______ 两类。
【简答题】阅读理解。 Hello! I am Mingming. I live in a big house. It is with a garden. This is our living room. We watch TV in it. This is my parents’ bedroom. This is my bedroom. It is clean. I study in my bedroom....
【简答题】John bought this stereo on his birthday. John has ________________________________.
【简答题】根据汉语意思补上单词。 1. The boy is in the ______(电梯). He is going to the top of the building. 2. —What are you doing? —He invited me to his birthday party this Sunday. I want to write him a ______(感谢信). 3. His...
【单选题】John has bought twenty _________for the coming picnic.
A.
bottles of juices
B.
bottles of juice
C.
bottle of juices
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