循环冷却水选用的形式与下列______因素无关。
A．重要性 B．冷却水用水设备的数量C．系统设置的场地条件 D．冷却水用水设备的形式
参考答案：D
幼儿体育是指什么？
Which of the following is true
A．A representative serves for two years.
B．To become a senator is easier than to become a representative.
C．A senator performs his duties for a shorter time than a representative.
D．All presidents were representatives and then senators before becoming president of the United States.
