在新民主主义的五种经济成分中，属于过渡形式的经济成分是___________。
Construction of the railways helped to develop the national _______ of Tanzania and Zambia.
Some molecules are large enough ________ (see) under the electronic microscope.
The opposition leaders ________ the government for not taking action sooner.
我国农业合作化过程中建立的初级农业生产合作社的性质是______。
，其中n为正整数,则f'(0)=()