We had to rely on our own intelligence to create ________and balance with the environment during development.
A:importance
B:agreement
C:effect
D:harmony
冬小麦是每年9、10月播种,翌年5、6月成熟的小麦品种。下图为某年10月24日~26日冬小麦播种示意图。据此完成下列问题。
①SO2②Cu2+③H2O2④3SO 42− ⑤N⑥ Cu+2O .