【简答题】I discussed with Joan on the phone and then we decided to go by plane. After ______ Joan on the phone, we decided to go by plane.
【单选题】某种物质的LD50数值越大,那么该物质的毒性( )
【判断题】2-8.( )If an adult travels with three children shorter than 1.2 meters, he needs to buy one full-price ticket for himself and two half-price ones for the three children.
【单选题】对算法理解正确的是( )
B.
基本运算及规定的运算顺序构成的完整的解题步骤
【判断题】Marcia is impressed by Daniel’s loyalty.
【单选题】某种物质的LD50数值越大,那么该物质的毒性
【判断题】通过对列车速度进行积分求和得到列车运行距离的定位方式是编码里程计定位