A:分子结构具有相对的稳定性
B:能够自我复制,前后代保持一定连续性
C:能够产生可遗传的变异
D:在任何条件下,分子都不会被破坏
结合上述材料回答:
People have the belief ________ factories should produce fewer things from raw materials, ________ the supply is growing smaller and smaller.