【判断题】吸收光谱可分为原子光谱和分子光谱两大类。
【单选题】—Are there any fish in the lake now? —No, _____ any water in it in winter. [ ]
【简答题】There was hardly any change in the sales throughout the period except for a slight rise on 200
【单选题】— Are there any fish in the river? — Yes, _____________. [ ]
【简答题】There was hardly any change in the sales throughout the period except for a slight rise on 1999.
【简答题】There is hardly any (differ) ______ in their attitudes toward their colleagues.
【单选题】按照产生光谱的物质类型不同,光谱可以分为______。
D.
X射线发射光谱、X射线吸收光谱、X射线荧光光谱、X射线衍射光谱
【单选题】Many students have never been to China before and _____ any Chinese. [ ]
【单选题】Jim doesn’t have _______ fish , but he has _______ meat . [ ]