[单选题] 渣打银行2003版港元纸币正面中间在() )下可见面额数字和条码
A. 可见光;
B. 紫外光;
C. 红外光;
D. 荧光。

Our environment is getting worse and worse with the increase of the world population, which affects the environment in two ways. Firstly, the limited energy resources will be used up much faster. Secondly, the increasing population creates more pollution, another severe problem that needs to be solved. Both problems are long-term ones because actions taken now show their results slowly over many years. They are also urgent because delays in action can lead to great suffering and social problems. The question seems to be difficult to handle for most people. However, a person can be a protector of environment in everyday life if he takes actions to save the environment fight now. With the development of technology, cars make transportation easier and quicker than before, but we can’ t ignore the disadvantages brought to us by more and more cars in use. For example, we are consuming gasoline(汽油), which is a non-renewable(无法更新的)resource, and will soon be gone. Moreover,
A. the increase of population
B. the limited energy resources
C. the more serious air pollution
D. the development of technology