题目

Out of______ for the wounded dog, Alice decided to take the abandoned animal home for treatment.        A. sympathy              B. favor             C. satisfaction           D. envy 答案：A一艘轮船在静水中的最大航速为32km/h，它以最大航速沿江顺流航行96km所用时间，与以最大航速逆流航行64km所用时间相等，江水的流速为多少？