按反应堆的用途可以将其分为哪些类型?
参考答案:按反应堆的用途可以将其分为生产堆、动力堆、试验堆、供热堆等。
Could you give me a hand?It seems that my strength has________. [ ]
A . used up
B. run out
C. been given out
D. run out of