第16题: [单项选择]Uniform acceleration occurs ______ the rate of change remains the same over successive equal intervals of time. A. according B. if C. with D. under 参考答案:B 答案解析:if可以引导条件状语从句和假设状语从句,作“如果”解,如:I don't know what would have happened if Jane hadn't been able to speak