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【单选题】
刺激生长素分泌的代谢因素中作用最强的是A.
低血糖
B.
低血脂
C.
低蛋白
D.
高血糖
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【简答题】The number of mainland Chinese students in American colleges and universities has increased greatly in recent years, especially at Ivy League schools.
【单选题】2 In recent years, Ivy League schools have accepted a wider range of students because _______.
A.
they needed professional sportsmen
B.
they were unsuccessful at research
C.
they were thought to be too socially elite
D.
it wasn’t possible to be both world-famous for research and top-class in sport
【单选题】In recent years, Ivy League schools have accepted a wider range of students because _______.
A.
they needed professional sportsmen
B.
they were unsuccessful at research
C.
they were thought to be too socially elite
D.
it wasn’t possible to be both world-famous for
【单选题】联合收割机收割谷物时,将谷粒从谷物中脱落下来并与茎秆初步分离的是( )。
A.
联合收割机脱粒装置
B.
联合收割机割台
C.
联合收割机分离装置
D.
联合收割机清选装置
【简答题】滴定分析法按照反应类型可以分类为四种,酸碱滴定、氧化还原滴定、(__)、(__),按照滴定方式分类可分为(__)、间接滴定、置换滴定、(__)、
【简答题】化学分析法又叫滴定分析法,按照反应类型不同可以分为 、 、 、 等四大滴定。
【简答题】按照滴定反应类型分,滴定分析法可分为酸碱滴定法、配位滴定法、 氧化还原滴定法、____________滴定法
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