以喷煤粉作为临时调剂手段,其优点是发挥了高风温调节的作用,有利于()。
A、风温
B、降低焦比
C、炉温
D、提高产量
参考答案:B, D
某同学用托盘天平称量镁粉25.2g(1g以下用游码),他把镁粉放在右盘,当天平平衡时,所称取的镁粉的实际质量是
A.25.2g
B.25.8g
C.24.2g
D.24.8g
In relation to the Property Law of China:
(a) explain the legal basis for creating legitimate possession, and the rules for determining the matters arising from possession; (3 marks)