预防地方性氟中毒主要的措施是()
A.增加氟的摄入量
B.减少氟的摄入量
C.种植吸氟植物
D.食物除氟
E.治疗氟斑牙
参考答案:B
根据下列句子及所给汉语注释,写出空缺处各单词的正确形式,每空只写一词。
小题1:Dick is a basketball player in our school team. And he is the ________ (最高)of us all.
小题2:Good manners are needed in the job ________ (面试).
小题3:It is ________ (必要的) for us to read English loudly every morning.
小题4:The apartment is so expensive that Mr. Green can’t ________ (买得起) it.
小题5:________ to (幸亏) the policeman, we caught the thief.
私营经济就其性质来说属于______。
A.以雇佣劳动为基础,存在着剥削与被剥削的资本主义性质经济B.小私有制经济C.集体所有制经济D.与外资企业一样性质的经济