问题
判断题
采样必须有代表性，否则其后的检验过程无论再准确，其检验结果也不准。
答案
参考答案：对
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采样必须有代表性，否则其后的检验过程无论再准确，其检验结果也不准。
参考答案：对
| 情景交际：用方框中所给句子完成对话。 | |
B: Hello! Did you enjoy the concert? A: Yes ,I did. B: Are you doing anything next Saturday? I'm planning to go to a jazz concert at Brighton. 1 A: I haven't decided yet. B: 2 A: OK. 3 B : No ,I haven't. A: It's 9978 - 9675,but I'm not in the office all day. B: 4 A: Any evening,after six. B: 5 See you next weekend,I hope. |