第20题: [单项选择]Finger-prints have often been used as a method of solving criminal case because it ______. A. is complicated but reliable B. is simple and not expensive C. is expensive but easy to do D. can bring a lot of money 参考答案:B 答案解析:细节题。本文第三段第四句话“Because of the simplicity and economy of this system…”所以, [B]正确。
A. Asking for help from the UN. B. Applying for peace talks. C. Retaliating by taking massive military operations. D. Launching nuclear war against Palestinians. 参考答案:C 答案解析:[听力原文]24-25 Israel is warning of harsh retaliation if it is attacked by Palestinians during t