碘量法测铜时,由于CuI沉淀强烈吸附I-,使结果______(偏高、偏低),所以在接近滴定终点时,加入KSCN的作用是____
碘量法测铜时,由于CuI沉淀强烈吸附I-,使结果______(偏高、偏低),所以在接近滴定终点时,加入KSCN的作用是______。
碘量法测铜时,由于CuI沉淀强烈吸附I-,使结果______(偏高、偏低),所以在接近滴定终点时,加入KSCN的作用是______。
第1题
As the selling season is approaching, please ship the goods with the least ______ delay.
A.possible B.profitable C.impossible D.portable
第3题
A.put, into
B.putting, in
C.make, to
D.cause, in
第4题
A、the season to climb the peak
B、the season to wear PEAK shoes
C、the hot season of travelling
D、the cold season of travelling
第5题
In the tropics, the two seasons are
A.summer and winter
B.a rainy season and a dry season
C.a warm season and a cold season
第6题
A.Season x = spring
B.Season x = Season.spring
C.Season x = 0
D.以上都不对
第7题
"Love Actually" is set in the season of Christmas.()
为了保护您的账号安全,请在“上学吧”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!