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【判断题】
纯水中K w =c(H + )·c(OH - )=10 -14 (25℃)，加入强酸后因H + 浓度大大增加，故K w 也大大增加。( )A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】下列每组划线词语含义相同的一项是
A.
道之所存， 师 之所存 圣人无常 师
B.
呼儿 将 出换美酒 将 进酒
C.
妇女无所 幸 故 幸 来告良
D.
吾尝 终 日而思矣 终 刚强兮不可凌
【简答题】Directions: In this section, you are going to read a passage with ten statements attached to it. Each statement contains information given in one of the paragraphs. Identify the paragraph from which t...
【简答题】On February 12, 2010, British Prime Minister Mr. _____ _____ took part in a video-conference with UN _____ _____ Ban Ki-moon and Prime Minister Meles Zenawi of Ethiopia to launch a High Level Advisory...
【简答题】A United Nations organization is working to help (1)_____ countries become active partners in the world (2) ________ . The UN Conference on Trade and Development says recent financial unrest shows the...
【简答题】A UN conference on arms reduction, which involves _________ and experts from more than a dozen countries, is ________ in Japan. On the agenda of the conference are ________ in NOrth Korea and Iran and...
【简答题】On February 12, 2010, British Prime Minister ____ took part in a video-conference with UN ____ Ban Ki-moon and Prime Minister Meles Zenawi of Ethiopia to launch a High Level Advisory Group on____.
【单选题】International environmental law has evolved over at least four distinct periods. The second period began with the creation of the UN in 1945 and _________with the UN Conference on the Human Environmen...
A.
competence
B.
culminated
C.
provisions
D.
of
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