题目

Body mass index, or BMI, is a measure of a person’s weight_________ height. A person with a BMI of twenty-five to twenty-nine is considered overweight.   A. in view of       B. in relation to        C. in terms of         D. in response to 答案：B关于速度和加速度的关系，下列说法中正确的是（　　）A、速度很大，加速度可能是零B、速度很小，加速度一定很小C、速度变化越大，加速度就一定越大D、速度为零，加速度就一定为零