下列的生活实例中,属于增大压强的是哪一项?() A书包的背带较宽B刀刃磨得很锋利C大型运输车装有很多车轮D在木椅上垫软坐垫E不知道
下列的生活实例中,属于增大压强的是哪一项?()
A书包的背带较宽
B刀刃磨得很锋利
C大型运输车装有很多车轮
D在木椅上垫软坐垫
E不知道
相关考题：
25、1845年焦耳完成了气体做自由膨胀的过程，下列哪种说法是正确的？ In 1845 Joule completed the process of free expansion of gases, which of the following statements is true？A．体积增大，压强增大，温度升高； The volume goes up, the pressure goes up, the temperature goes up;B．体积增大，压强增大，温度降低； The volume goes up, the pressure goes up, the temperature goes down;C．体积增大，压强增大，温度不变； The volume goes up, the pressure goes up, the temperature stays the same;D．体积增大，压强减小，温度不变； The volume goes up, the pressure goes down, the temperature stays the same;
1845年焦耳完成了气体做自由膨胀的过程，下列哪种说法是正确的？ In 1845 Joule completed the process of free expansion of gases, which of the following statements is true？A．体积增大，压强增大，温度升高； The volume goes up, the pressure goes up, the temperature goes up;B．体积增大，压强增大，温度降低； The volume goes up, the pressure goes up, the temperature goes down;C．体积增大，压强增大，温度不变； The volume goes up, the pressure goes up, the temperature stays the same;D．体积增大，压强减小，温度不变； The volume goes up, the pressure goes down, the temperature stays the same;