We are often told by our teachers not to do such things that don't _____ a harmonious society. [ ]

A. come about

B. make for

C. come up

D. make up

在规定温度下使试样在规定时间产生的蠕变身长率（）稳态蠕变速率不超过规定值的（），称为蠕变极限。