如下哪个表达式同(A>8)&&(A[18)是等价的?Which of the following expressions is equivalent to (A]8)&&(A<18)? A: !(A<8)&&!(A>18) B: !(A<=8)&&!(A>=18) C: !(A>8||A<18) D: A<8||A>18
如下哪个表达式同(A>8)&&(A[18)是等价的?Which of the following expressions is equivalent to (A]8)&&(A<18)? A: !(A<8)&&!(A>18) B: !(A<=8)&&!(A>=18) C: !(A>8||A<18) D: A<8||A>18
如下哪个表达式同A>8 AND A[18是等价的?Which of the following expressions is equivalent to A ] 8 AND A < 18? A: NOT(A<8)AND NOT(A>18) B: NOT(A<=8)AND NOT(A>=18) C: NOT(A>8 OR A<18) D: A<8 OR A>18
如下哪个表达式同A>8 AND A[18是等价的?Which of the following expressions is equivalent to A ] 8 AND A < 18? A: NOT(A<8)AND NOT(A>18) B: NOT(A<=8)AND NOT(A>=18) C: NOT(A>8 OR A<18) D: A<8 OR A>18
-18的绝对值是( ) A: 18 B: -18 C: 8 D: -8
-18的绝对值是( ) A: 18 B: -18 C: 8 D: -8
可靠安全系数是指() A: LD/ED B: ED/LD C: LD/ED D: LD/ED E: ED/LD
可靠安全系数是指() A: LD/ED B: ED/LD C: LD/ED D: LD/ED E: ED/LD
安全界限为() A: LD B: ED C: LD/ED D: LD/ED E: LD/ED
安全界限为() A: LD B: ED C: LD/ED D: LD/ED E: LD/ED
如下哪个表达式同A>8 AND A<18是等价的? which of the following expressions is equivalent to a> 8 AND A < 18? a. NOT(A<8)and not(a>18) b. NOT(A<=8)and not(a>=18) c. NOT(A>8 OR A<18) d. A: a B: b C: c D: d
如下哪个表达式同A>8 AND A<18是等价的? which of the following expressions is equivalent to a> 8 AND A < 18? a. NOT(A<8)and not(a>18) b. NOT(A<=8)and not(a>=18) c. NOT(A>8 OR A<18) d. A: a B: b C: c D: d
半数有效量为() A: LD B: ED C: LD/ED D: LD/ED E: LD/ED
半数有效量为() A: LD B: ED C: LD/ED D: LD/ED E: LD/ED
嵌体洞斜面的角度为() A: 8° B: 5° C: 45° D: 135° E: 30°
嵌体洞斜面的角度为() A: 8° B: 5° C: 45° D: 135° E: 30°
如下哪个表达式同A>8 AND A[18是等价的?a. NOT(A<8)AND NOT(A]18)b. NOT(A[=8)AND NOT(A]=18)c. NOT(A>8 OR A[18)d. A<8 OR A]18 A: a B: b C: c D: d
如下哪个表达式同A>8 AND A[18是等价的?a. NOT(A<8)AND NOT(A]18)b. NOT(A[=8)AND NOT(A]=18)c. NOT(A>8 OR A[18)d. A<8 OR A]18 A: a B: b C: c D: d
如下哪个表达式同A>8 AND A[18是等价的?Which of the following expressions is equivalent to A ] 8 AND A [ 18?a. NOT(A<8)AND NOT(A]18)b. NOT(A[=8)AND NOT(A]=18)c. NOT(A>8 OR A[18)d. A<8 OR A]18 A: a B: b C: c D: d
如下哪个表达式同A>8 AND A[18是等价的?Which of the following expressions is equivalent to A ] 8 AND A [ 18?a. NOT(A<8)AND NOT(A]18)b. NOT(A[=8)AND NOT(A]=18)c. NOT(A>8 OR A[18)d. A<8 OR A]18 A: a B: b C: c D: d