【单选题】Under conditions of decreasingcost:
A.
Under conditions of decreasingcost: externalities are irrelevant andinapplicable.
B.
afew large ellers may come todominate the industry.
C.
astrong case can be made forsupplanting complete individualismby some kind of group action.
D.
each of firms in the industry will continue to produce more outputat falling costs per unit.
【单选题】螺栓的规定标记 “ 螺栓 GB/T 5782 M10×50” 中, 10 是指
【判断题】若双链DNA中的一条链碱基顺序为pCpTpGpGpApC,则另一条链的碱基顺序为pGpApCpCpTpG。
【简答题】Laws concerning discrimination and the conditions under which individuals may be ____________(依法为……负责)their actions are influenced by the research.
【判断题】若双链 DNA 中的一条链碱基顺序为 CTGGAC ,则另一条链的碱基顺序为 GACCTG 。
【简答题】Their parent once lived under very severe conditions.
【判断题】若双链 DNA 中的一条链碱基顺序为 pCpTpGpApC ,则另一条链的碱基顺序为 pGpApCpCpTpG 。
【简答题】Under L/C operations,the bank will effect payment under the following conditions( ).