单项选择题

同温度下黑体的辐射力小于灰体的辐射力。
A、正确
B、错误

<上一题 目录 下一题>
热门 试题

单项选择题
新陈代谢的代谢途径是为了研究的方便人为划分的，实际上代谢之间有着千丝万缕的联系。（ ）
A．对
B．错
单项选择题
Which of the following statements is NOT true about the general election? A、 During the general election, Americans cast their votes. B、 The votes in the general election determine the final winner. C、 The general election is often referred to as midterm election, or indirect election. D、 The general election is the 3rd step in the presidential election in the United States.
相关试题