第13题: [单项选择]粘性流体总水头线沿程的变化是:() A. 沿程下降 B. 沿程上升 C. 保持水平 D. 前三种情况都有可能 参考答案:A
第14题: [单项选择]How did the driver possibly go into the church A. He went with the priest. B. He followed the priest. C. He went through another door by running. D. He went into the church faster before the priest while he did not notice him. 参考答案:D 答案解析:[解析] 由最后一段可知:当牧师做完祈祷离开时发现教堂里的那个人正是那位出租车司机。因此可以推断出D项正确。