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【单选题】
难溶电解质 AB 2 在水中溶解,反应式为 AB 2 (s)=A 2+ (aq)+2B - (aq), 当达到平衡时,难溶物 AB 2 的溶解度 S mol·L -1 与积 K sp θ (AB 2 ) 的关系是A.
S / c θ = (2K sp θ ) 2
B.
S / c θ = (K sp θ /4) 1/3
C.
S / c θ = (K sp θ /2) 1/2
D.
S / c θ = (K sp θ /27) 1/4
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【单选题】From the paragraph 5 we may infer that Anorexia and Bulimia are ______.
A.
two similar mental illnesses
B.
two different common mental illnesses
C.
both bad eating habites
D.
both illnesses of eating disorders
【单选题】From the Paragraph 5 we may infer that Anorexia and Bulimia are______.
A.
two similar mental illnesses
B.
two different common mental illnesses
C.
both bad eating habits
D.
both illnesses of eating disorderly
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A.
关键字相同的记录被映射到不同的哈希地址
B.
关键字依次被映射到编号连续的哈希地址
C.
关键字不同的记录被映射到同一个哈希地址
D.
关键字的数目超过哈希地址的数目
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【简答题】接合菌的有性孢子称为 ( )。
【单选题】From the fifth paragraph we may infer that Anorexia and Bulimia are
A.
two similar mental illnesses.
B.
two different common mental illnesses.
C.
both bad eating habits.
D.
both illnesses of eating disorders.
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