【多选题】下列内容中,属于社会评价主要内容的有( )。
【单选题】某同学测量的RC放电曲线和曲线拟合结果如图所示,拟合函数设为 ,下列表述正确的是
A.
表明实验测得的时间常数 =1/0.3626=2.758s
C.
表明实验测得的半衰期 =1/0.3626=2.758s
【多选题】下列内容中,属于社会评价主要内容的有()。
【简答题】阅读理解。 In northern China during spring big sandstorms often make trouble for people. Sandstorms usually happen in spring. They have happened in more than 10 provinces in northern China this year. Peopl...