皮皮学，免费搜题
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【判断题】
对于多元酸H3AO4,其Ka1/Ka2≥10-4,是衡量其能否对第二进行分步滴定的条件之一。( )A.
正确
B.
错误
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皮皮学刷刷变学霸
举一反三
【单选题】Listen to the short dialogues and choose the best answer.
A.
The woman doesn't want to change the time.
B.
The man needs to change the time.
C.
The man is not free at 1pm.
D.
The woman is not free at 9 pm.
【简答题】Listen to the short conversations and choose the best answers to the questions.
【简答题】杰克·韦尔奇在通用公司,把员工分为20%是最好的,70%是中间状态的,10%是最差的。最好的应该马上得到激励过升迁,最差的必须马上走上。这条强制淘汰曲线就是著名的______________。
【单选题】Listen to the short conversation and choose the best answer to the question you hear.
A.
Travel alone in safe places in India.
B.
Follow the Indian culture and customs.
C.
Wear the same clothes as the local women.
D.
Choose another place to go instead of India.
【单选题】Listen to the short conversation and choose the best answer to the question you hear.
A.
Send these children to school.
B.
Help clean the tiny, dirty houses.
C.
Give these children some money and food.
D.
Have their daughter get to know such a life.
【简答题】Listen to the short conversations and choose the best answers to the questions.
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