分析美学家莫里斯•韦兹的代表作是()
A、《艺术哲学》
B、《美学》
C、《美学问题》
D、《论美学》
参考答案:C
The International Day against Drugs, aimed at warning people to keep away from drugs, ______ on June
26th every year. [ ]
A. taking place
B. takes place
C. took place
D. taken place
一个密码体系一般分为以下哪几个部分?()
A、明文
B、加密密钥和解密密钥
C、密文
D、加密算法和解密算法