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【单选题】
3-1 - 3 根据热力学知识,下列定义中不正确的是A.
H 2 (g) 的标准摩尔生成焓为0
B.
H+ (aq) 的 标准摩尔生成焓为0
C.
H (g) 的 标准摩尔生成焓为0
D.
H2（g） 的标准摩尔吉布斯自由能为0
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举一反三
【简答题】According to Herron, after having the surgery, the recovery time ______ from person to person.
【单选题】After having the weight loss surgery, a person will not suffer from obesity any more.
A.
Y
B.
N
C.
NG
【单选题】The text is mainly about
A.
the advantage of having cosmetic surgery.
B.
what kind of people should have cosmetic surgery.
C.
the reason why cosmetic surgery is so popular.
D.
the disadvantage of having cosmetic surgery.
【单选题】在最小依赖集F中，下面叙述不正确的是（）
A.
F中每个FD的右部都是单属性
B.
F中每个FD的左部都是单属性
C.
F中没有冗余的FD
D.
F中每个FD的左部没有冗余的属性
【单选题】Having surgery is also called
A.
having an opera
B.
having an trauma
C.
having an operation
D.
having an surgeon
【简答题】The text is mainly about _____. ［A］ the advantage of having cosmetic surgery ［B］ what kind of people should have cosmetic surgery ［C］ the reason why cosmetic surgery is so popular ［D］ the disadvantage...
【简答题】A person who thinks about having weight loss surgery should find ______ bariatric surgeon.
【单选题】分组交换中“虚电路”是指
A.
并不存在任何实际的物理线路
B.
在逻辑上的一条假想的线路，实际上并不能使用
C.
以频分复用方式使用的一条线路
D.
以时分复用方式使用的一条线路
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