【多选题】
设个体域 D={a,b,c}, 消去谓词“xy(F(x) úG(y))”中的量词后的形式,下面不正确的有:
①
(F(a) ùF(b)) ùF(c)) ù (G(a) úG(b) úG(c));
②
(F(a) ùF(b) ùF(c)) ú (G(a) ùG(b) ùG(c))
③
(F(a) ùF(b) ùF(c)) ? (G(a) ùG(b) ùG(c));
④
(F(a) ùF(b) ùF(c)) ù (G(a) ùG(b) ùG(c)).
【多选题】
设函数f: N?N′N, f(x)=,则它是:
【多选题】
公式“(?p?q) ? (?qúp)”的主析取范式中极小项下标有:
【简答题】
<img src="https://huaweicloudobs.ahjxjy.cn/DD4212B310FF0CCFA9B117F3B2C7EA7E.png" title="1.png" alt="1.png"/>
【简答题】
<img src="https://huaweicloudobs.ahjxjy.cn/3BF2E5A1789ACD1D2F338F91BCDE90CB.png" title="6.png" alt="6.png"/>
【简答题】
<img src="https://huaweicloudobs.ahjxjy.cn/44F3C3F9B13C1CE1CBBBF99B94969A43.png" title="3.png" alt="3.png"/>=[填空1]
【简答题】
<img src="https://huaweicloudobs.ahjxjy.cn/88FE88F0EE2C2E719AC98E20785E9585.png" style="" title="0.png"/><img src="https://huaweicloudobs.ahjxjy.cn/6C81997BE673D44D1BE1C96EE02BED7D.png" style="" title="4.png"/>[填空1]
【简答题】
Translate the following sentence into English.他什么也没说,使我对他的计划毫不知情。
【简答题】
Direction: Fill in the blanks with thephrases given below. Change the form if necessary.[set off; after all; attach to; burst into laughter; lean against; teach...a lesson; take off; come to sense; give in to]7. Peter liked to see aeroplanes[填空1]from the aerodrome.
【简答题】
Direction: Fill in the blanks with thephrases given below. Change the form if necessary.[ought to; look forward to; in wonder; give way to; look down; on the way to; reach out; put one’s arm around; trip over; cut into]2. When they saw the horse, all stood still[填空1].