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【单选题】
V模型指出_______对系统设计进行验证A.
单元和集成测试
B.
单元测试
C.
系统测试
D.
验收测试
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举一反三
【单选题】The National Sleep Organization found many Japanese sleep poorly by ______.
A.
telephoning them
B.
communicating with them face to face
C.
using the Internet
D.
asking their doctors
【简答题】使用第四单元的核心词汇或词组填空 W ith the 1 we can escape into another world at the 2 of a button. F or many this 3 world is a dream come true. T hey find they can do away with the daily 4 and stay inside for weeks ...
【简答题】Clearly if we are to participate in the society in which we live we must communicate with the other people. A great deal of communicating is 【M1】______ performed on a person-to-person base by the simp...
【简答题】Complete the passage with suitable words from the word bank. You may not use any of the words more than once. conversational interpersonal seriously struggled normally critic negative rely overlooked ...
【单选题】Section A (10 points) Directions: In this section, t here are 10 incomplete statements here. You are required to complete each one by deciding on the most appropriate word or words from the 4 choices ...
A.
communicate
B.
communicating
C.
to communicate
D.
communicated
【单选题】在红外光谱分析中,用 KBr 制作试样池,这是因为 ( )
A.
KBr 晶体在 4000-400cm -1 范围内不会散射红外光
B.
KBr 晶体在 4000-400cm -1 范围内有良好的红外光吸收特性
C.
KBr 晶体在 4000-400cm -1 范围内无红外光吸收
D.
KBr 晶体在 4000-400cm -1 范围内不会反射红外光
【单选题】在红外光谱分析中,用KBr制作为试样池,这是因为
A.
KBr在4000~400cm -1 范围内不会有散射红外光
B.
KBr在4000~400cm -1 范围内有良好的红外光吸收特性
C.
KBr在4000~400cm -1 范围内没有红外光吸收
D.
KBr在4000~400cm -1 范围内对红外光无反射
【单选题】在红外光谱分析中,用 KBr 作为试样池,这是因为 KBr 晶体在 4000 ~ 400Cm -1 范围内
A.
不会散射红外光
B.
对红外光无反射
C.
无红外光吸收
D.
有良好的红外光吸收特性
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