题目内容
当被滴定溶液中有浓度相同M和N两种离子共存时,欲使EDTA滴定M而N不干扰,则在0.1%的误差要求下滴定反应要符合: ( )
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Read these statements about Kakenya Ntaiya, a Kenyan woman. Then listen to the recording and put her story in order, and choose the right order from A,B,C and D.a. She went to college in the U.S.b. She returned to her village and started a school.c. She talked to her father.d. Her family wanted her to get married.
____1____% of all girls go to elementary school in Kenya, and only __2____ in 5 girls in poor area goes.In Kenya, girls leave school and get married at age___3__ or ___4___
_________, also called deep breathing exercise, is practised by the Chinese on a regular basis to keep fit."________” literally means "air" and implies Tife force
Modern martial arts consist of five categories: ________、weapon exercises, sparring exercises, actual combat and _______.
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