在中国近代化的过程中,中国的新式教育逐步形成。结合所学知识,回答下列问题。
如图是我国长江水系示意图,读图完成下面小题。
Parents should pay attention to the cases _______ their children have difficulty adapting to new surroundings.
锂常被人们誉为“金属味精”.已知锂的核电荷数为3,锂比铝活泼.下列说法错误的是( )