【单选题】Did the experiment find any differences ___________what children learned?
【判断题】The author believes the family rules which worked in his life should be learned or followed by the children.
【判断题】烧成带的温度一般控制在850~950°C之间。
【单选题】1953年在接见印度代表团时首次提出了“和平共处五项原则”。对这一原则的评述,正确的是①它表达了拥护国际和平、反对侵略的愿望②它成为解决国与国之间关系的基本原则③它适用于不同社会制度的国家④它仍然适用于当今和平与发展的时代要求()
【单选题】The children have already learned from chemistry that water ___ made up of hydrogen and oxygen.