GFM电池荷电出厂，在电池安装结束投入使用前应对电池作如何处理？
参考答案：
应对电池组进行补充充电。
—______ I come back before dinner?
—No, you ______. But you ______ be back later than 10: 30 p.m. [ ]
A. Need Amust; mustn 't
B. May; mustn't; can't
C. Can; can't; can't
D. Must; needn't; can't
采用竞争性监理招标时，投标单位越多，对建设单位越有利。 ( )
