冲击危险
参考答案:
工作地区在具体地质条件下有发生冲击地压的可能性,它可以通过钻屑法、地音监测法等方法进行预测。严重冲击危险区及中等冲击危险区统称为冲击危险区。
补全对话。(填入适当的单词)
A: 1. _____ do you get to school?
B: I 2. _____ the bus.
A: How 3. _____ is it 4. _____ your home 5. _____ school?
B: It's 2.5 kilometers.
A: How 6. _____ does it 7. _____ you to get to school?
B: 8. _____ takes twenty minutes. What about you?
A: I often 9. _____ to school because my home is only fifteen meters 10. _____
school.
SLE的特征表现是
A.发热B.C3降低C.皮肤粘膜损害D.浆膜炎E.光照后加重