1928年，东陵大劫，军阀孙殿英的部队炸开了清东陵的两个地宫，盗走了大量的随葬珍宝，请问是哪两座陵墓？
参考答案：
乾隆的裕陵和慈禧的普陀峪定东陵
Email, as well as telephones, ________an important part in daily communication. [ ]
A. is playing
B. have played
C. are playing
D. play
日产液量≤5t，热洗扣产（）d；5ｔ＜日产液量≤10ｔ，热洗扣产（）d；10ｔ＜日产液量≤15ｔ，热洗扣产（）_d；15ｔ＜日产液量≤30ｔ，热洗扣产（）d；日产液量＞30ｔ，热洗扣产（）h。热洗井（）生产时间.
