【简答题】有如下语句: val sorigin:String = "abc.def.ghi.jkl,opq,201410598210" 请编写程序,对该字符串进行相应的函数和操作,完成如下输出: 原始串是:abc.def.ghi.jkl,opq,201410598210 substring的使用,只要第一个小数点之前的字符:abc 把字符串转换为字符数组,用-间隔字符:a-b-c-.-d-e-f-.-g-h...
【单选题】若凸轮机构中从动件的运动规律为等加速-等减速运动规律,则
【单选题】He told me he had been offered a very well-paid position abroad.
【单选题】He will be ____ for months and he told me he wouldn’t be ____ till next Saturday.A.off; offB.awa
A.
12. He will be ____ for months and he told me he wouldn’t be ____ till next Saturday. A.off; off
【单选题】He told me he had been offered a well-paid ____, but he refused it. [ ]
【判断题】He told me he will not go to Beijing
【单选题】若凸轮机构中从动件的运动规律为等速运动规律则
【单选题】先将总体划分为若干群,然后以群作为抽样单位从中抽取部分群,再对抽中的各个群中所包含的所有元素进行观察,这样的抽样方法称为()