冲击功初试不合,可从同一抽样产品上再取3个试样进行试验,6个试样的平均值不得低于规定值,允许有()个试样低于规定值,但其中低于规定值70%的试样只允许()个。
参考答案:2;1
单词拼写
1. They lived in the _______ (北方的) part of China.
2. The students ran in all d_______ when they heard the shouts.
3. The girl went to school in a h_______ without breakfast.
4. The child could not hide his _______ (激动) when he came back from Beijing.
5. He had many interesting _______ (经历) while traveling in the USA.
南多块磁盘构成的一个整体,但是这并不等于是简单的磁盘容量叠加,而是相对于其他存储设备在容量、管理、性能、可靠性和可用性上都有了进一步提高的是______。