Thewealthofacountryshouldbemeasured________thehealthandhappinessofitspeopleaswellasthematerialgoodsitcanproduce.
中国共产党对资本主义工商业进行社会主义改造的第三步是______。
引起窦房结P细胞动作电位0期去极化的主要离子是？
Thefarmerhadtowearheavybootsinthewinterbecausethefieldsweretoowetand________.
It'smore________tobuyaseasonticketifyoutraveleveryday.
