第1题: [单项选择]What does Kate think about the shirt A. $8.00. B. $8.50. C. $9.00. 参考答案:B 答案解析:[听力原文] M: They are very nice shirts. How much are they W: 8.50 dollars each. But 13 dollars f
第28题: [单项选择]For the following statements,194;which one is the strongest symmetrical encryption algorithm?() A. AES B. 3DES C. DES D. Diffie-Hellman 参考答案:A