接地线根据设计要求布放,并要求接地线弯曲角度大于(),曲率半径大于()。
参考答案:90;130mm
根据实际情况回答问题。
1. What's your name?
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2. When do you go to school?
3. When do you have math class?
4. When do you eat dinner?
5. Do you go to bed at 9: 00?
6. How many pencils do you have?
食物中毒发病潜伏期短,发病曲线呈()趋势。