II类载荷
参考答案:
Ⅱ类载荷用于静荷能力计算和抗倾覆稳定性的计算载荷,考虑应该是起重机作业时可能发生的最不利的载荷组合,如最大起升载荷。II类载荷
— _____ I return the dictionary within three days?
— No, you____. You _____ keep it for five days. [ ]
A. May; needn't; will
B. Can; mustn't; would
C. Must; don't have to; can
D. Shall; can't; should
同类色对比是指的冷暖差异在15℃左右的较弱对比。