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【多选题】
(本是简答题)碘量法中为了防止I-被空气氧氧化,应采取哪些措施?A.
在酸性溶液中,用I-还原待测氧化剂组分时,将碘量瓶置于暗处反应
B.
消除Cu2+、NO2- 等干扰离子,避免它们催化I-的氧化
C.
析出I2后,立即进行滴定,且适当加快速度
D.
溶液酸度不能过高
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【单选题】企业创新要求员工努力做到( )
A.
不能墨守成规，但也不能标新立异
B.
大胆地破除现有的结论，自创理论体系
C.
大胆试大胆闯，敢于提出新问题
D.
激发人的灵感，制冲动和感情
【单选题】企业创新要求员工努力做到( )
A.
不能墨守成规但也不能标新立异
B.
大胆破除现有结论自创理论体系
C.
大胆试大胆闯敢于提出新问题
D.
激发人的灵感遏制冲动和情感
【单选题】企业创新要求员工努力做到
A.
不能墨守成规,但也不能标新立异
B.
大胆的破除现有的结论,自创理论体系
C.
大胆地试大胆地闯,敢于提出新问题
D.
激发人的灵感,遏制冲动和情感
【单选题】You’re scheduled to meet a business associate for working lunch and you arrive a few minutes early to find a suitable table. 30 minutes later your associate still hasn’t arrived. You:
A.
order your lunch and eat.
B.
continue waiting and fuming that your associate isn’t there.
C.
tell the head waiter you're not staying and give him a card with instructions to present it to your associate to prove you were there.
D.
after 15 minutes call your associate.
【单选题】You’re scheduled to meet a business associate for working lunch and you arrive a few minutes early to find a suitable table. 30 minutes later your associate still hasn’t arrived. You: the head waiter...
A.
order your lunch and eat.
B.
continue waiting and fuming that your associate isn’t there.
C.
tell
D.
after 15 minutes call your associate.
【单选题】企业创新要求员工努力做到
A.
不能墨守成规,但也不能标新立异
B.
大胆地破除现有的结论,自创理论体系
C.
大胆地尝试大胆地闯,敢于提出新问题
D.
激发人的灵感,遏制冲动和情感
【单选题】You’re scheduled to meet a business associate for working lunch and you arrive a few minutes early to find a suitable table. 30 minutes later your associate still hasn’t arrived. You:
A.
after 15 minutes call your associate.
B.
order your lunch and eat.
C.
continue waiting and fuming that your associate isn’t there.
D.
tell the head waiter you're not staying and give him a card with instructions to present it to your associate to prove you were there.
【简答题】阅读理解。 People's hobbies aren't always the same. They change with many things. Here are some examples. Age Hobbies change with your age. When you're a kid, you may be interested in playing s, collec...
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