Should there be two focuses available in Chinese high schools (humanity focus and science focus) Please give specific reasons to support your argument. 参考答案:[参考例文]
Should There Be Two Focuses Available in Chinese High Schools
Nowadays a hot topic is discussed from time to time that is whether there should be two focuses—humanity focus and science focus--available in our high school education．Two kinds of voices can be heard．One is that humanity and science should be combined，while the other is that they should be separated． The following reasons would account for why we are supposed to combine humanity and science．On the one hand，it is essential for us to learn humanity—focused knowledge if we’d like to have a thorough understanding in the background of history，geography and the whole society．And what’s more，humanity—focused knowledge would further promote the spread of science rather than come into conflict with it．because our vision is able to become more extensive through humanity—focused learning．On the other hand，human development call not be separated from science—oriented disciplines．Because of it，human society has experienced an unprecedented development and electricity，net，mobile-phone and other advanced devices become a part of our daily life． Although the benefit from the combination of humanity and science can be seen clearly．there are different voices from the majority of parents and students．They hold the idea that different people have different circumstances，such as various advantages，SO they ought tO make full use of limited time and energy to do what they are good at． As for me．I’m eager to acquire as much knowledge as possible including science and humanity SO that I will enjoy a solid foundation for my further study．
第28题: [单项选择]关于数字签名，下列说法不正确的是( )。 A. 数字签名又叫不对称加密 B. 数字签名可以保证数据在传输过程中的安全性 C. 数字签名的格式有两种，被签消息整体和签名图样 D. 数字签名可以防止交易中的抵赖发生 参考答案:B 答案解析:[分析] 不对称加密的另一用法称为“数字签名”；数字签名的格式有两种，一种是经过密码变换的被签消息整体，另一种是附加在被签消息之后或某一特定位置上的一段签名图样。此外数字签名技术可以保证信息传输过程中
