您要查找的是不是：
- His area of concentration is nuclear physics. 他的专门研究范围是原子物理学。
- The drug affects one's power(s) of concentration. 这种药影响人精神不能集中。
- A person's face is often an index of his mood. 一个人的脸部表情常常反映这个人的情绪。
- Stress and tiredness often result in a lack of concentration. 紧张和疲劳常使人精神不集中。
- The increasing sale of luxury goods is an index of the country's prosperity. 奢侈商品销售量日增是该国繁荣的标志。
- An exam demands a high level of concentration. 考试时需要全神贯注。
- The face is the index of the mind. [谚]脸是心灵的镜子。
- The drug may affect your powers of concentration. 这种药可能会影响你的注意力集中。
- Color is commonly an index of ripeness or spoilage. 色泽一般是成熟和败坏的标志。
- This book requires a great deal of concentration. 这本书需要全神贯注才能读懂。
- He is a boy with little power of concentration. 他是个注意不易集中的男孩。
- He has great powers of concentration. 他注意力很集中。
- Busy factories are an index of prosperity. 忙碌的工厂是繁荣的表徵。
- His area of concentration is economics. 他专心研究经济学。
- Gets or sets the index of the displayed record. 获取或设置所显示的记录的索引。
- The Determination of Concentration for SO_2 Gase. SO_2气体浓度的测定
- Gets or sets the tab index of the HotSpot region. 获取或设置HotSpot区域的选项卡索引。
- Gets the base index of each dimension in the array. 获取数组中每个维度的基本索引。
- Gets the index of the loopback interface. 获取环回接口的索引。
- Gets the index of the next BLOB in the table. 获取表中下一个BLOB的索引。
