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【多选题】
在逻辑函数表达式 中,变量A、B、C为哪些取值组合时,函数Z的值为1?(多选)A.
001
B.
011
C.
101
D.
110
E.
111
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举一反三
【单选题】At the beginning of the 17th century the English language was brought to North America by colonists from England who used the language spoken in England, that is,______, the language used by Shakespea...
A.
Elizabethan English
B.
Edwardian English
C.
King's English
D.
Standardized English
【单选题】连续自交可降低群体的杂合度，若P 0 为0代的杂合度，自交n代后，计算杂合频率的公式是（）。
A.
P 0 /2 n
B.
（P 0 /2n〕 n
C.
P n 0 /2
D.
P n 0
【简答题】连续自交可降低杂合度,若P0为0代的杂合度,自交n代后,计算杂合率的公式是 。
【简答题】All (communicate) with the north was stopped by the snowstorm.
【单选题】已知在298K时反应2N 2 (g)+O 2 (g)=2N 2 O(g)的∆ r U m θ 为166.5 kJ.mol -1 ,则该反应的∆ r H m θ 为()
A.
164 kJ﹒mol -1
B.
328 kJ﹒mol -1
C.
146 KJ.mol -1
D.
82 kJ﹒mol -1
【简答题】The North was by then firmly established as an ____ society. Labor was needed, but not slave labor.
【判断题】By the end of the Civil War, the North was in a state of political upheaval, social disorder and economic decay.
A.
正确
B.
错误
【单选题】已知在 298K 时反应 2N 2 (g)+O 2 (g)═2N 2 O(g) 的 D r U m q 为 166.5 kJ·mol - 1 ,则该反应的 D r H m q 为( )
A.
164 kJ·mol -1
B.
328 kJ·mol -1
C.
146 kJ·mol -1
D.
82 kJ·mol -1
【简答题】8. All __________ with the north was
stopped by the snowstorm.
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