高程放样时候,已知点A的高程为100m,A点的水准尺读数为1.567m,要放样一个高程为101m的B点,那么B点的水准尺读数应该为 A: (A)1.567m B: 0.567m C: 2.567m D: 100m
高程放样时候,已知点A的高程为100m,A点的水准尺读数为1.567m,要放样一个高程为101m的B点,那么B点的水准尺读数应该为 A: (A)1.567m B: 0.567m C: 2.567m D: 100m
The employees of a company were surveyed on questions regarding their educational background (college degree or no college degree) and marital status (single or married). Of the 600 employees, 400 had college degrees, 100 were single, and 60 were single college graduates. The probability that an employee of the company is single or has a college degree is ________. A: 0.10 B: 0.25 C: 0.567 D: 0.733
The employees of a company were surveyed on questions regarding their educational background (college degree or no college degree) and marital status (single or married). Of the 600 employees, 400 had college degrees, 100 were single, and 60 were single college graduates. The probability that an employee of the company is single or has a college degree is ________. A: 0.10 B: 0.25 C: 0.567 D: 0.733
以下不能将变量m清零的表达式是( )。: m=m&0/#/m=m&~m/#/m=m^m/#/m=m|m
以下不能将变量m清零的表达式是( )。: m=m&0/#/m=m&~m/#/m=m^m/#/m=m|m
<img src="http://edu-image.nosdn.127.net/6360CA697BBFE0086EF797FB70C5CF39.png?imageView&thumbnail=890x0&quality=100" />? ×、m、×、×、×、M|×、M、m、×、×、×|×、m、×、×、M、×|×、×、m、×、×、M
<img src="http://edu-image.nosdn.127.net/6360CA697BBFE0086EF797FB70C5CF39.png?imageView&thumbnail=890x0&quality=100" />? ×、m、×、×、×、M|×、M、m、×、×、×|×、m、×、×、M、×|×、×、m、×、×、M
对于报文M若找到M’使_____,即找到碰撞能够构成对哈希函数H的攻击。( ) A: M=M且H(M’)=H(M) B: M’≠M且H(M’) ≠H(M) C: M’≠M但H(M’)=H(M) D: M’=M但H(M’) ≠H(M)
对于报文M若找到M’使_____,即找到碰撞能够构成对哈希函数H的攻击。( ) A: M=M且H(M’)=H(M) B: M’≠M且H(M’) ≠H(M) C: M’≠M但H(M’)=H(M) D: M’=M但H(M’) ≠H(M)
若找到_____即找到碰撞能够构成对哈希的攻击() A: M’=M且H(M’)=H(M) B: M’≠M且H(M’) ≠H(M) C: M’≠M但H(M’)=H(M) D: M’=M但H(M’) ≠H(M)
若找到_____即找到碰撞能够构成对哈希的攻击() A: M’=M且H(M’)=H(M) B: M’≠M且H(M’) ≠H(M) C: M’≠M但H(M’)=H(M) D: M’=M但H(M’) ≠H(M)
用EDTA滴定金属M, 若M分别与A,B,C三种络合剂发生副反应,此时计算M的公式是( )。 A: αM =αM(A)+αM(B)+αM(C)-1 B: αM =αM(A)+αM(B)+αM(C)-2 C: αM =αM(A)+αM(B)+αM(C)-3 D: αM =αM(A)+αM(B)+αM(C)
用EDTA滴定金属M, 若M分别与A,B,C三种络合剂发生副反应,此时计算M的公式是( )。 A: αM =αM(A)+αM(B)+αM(C)-1 B: αM =αM(A)+αM(B)+αM(C)-2 C: αM =αM(A)+αM(B)+αM(C)-3 D: αM =αM(A)+αM(B)+αM(C)
删除主目录下以m结尾的文件,使用()命令 A: m ~/?m B: m ~/*m C: m ~/m D: m ~/m*
删除主目录下以m结尾的文件,使用()命令 A: m ~/?m B: m ~/*m C: m ~/m D: m ~/m*
矩阵[left[ {egin{array}{*{20}{c}} {m{0}}&{m{0}}&{m{5}}&{m{2}}\ {m{0}}&{m{0}}&{m{2}}&{m{1}}\ {m{4}}&{m{2}}&{m{0}}&{m{0}}\ {m{1}}&{m{1}}&{m{0}}&{m{0}} end{array}} ight]]的逆矩阵为 ()
矩阵[left[ {egin{array}{*{20}{c}} {m{0}}&{m{0}}&{m{5}}&{m{2}}\ {m{0}}&{m{0}}&{m{2}}&{m{1}}\ {m{4}}&{m{2}}&{m{0}}&{m{0}}\ {m{1}}&{m{1}}&{m{0}}&{m{0}} end{array}} ight]]的逆矩阵为 ()
普通圆柱蜗杆传动的正确啮合条件是() A: m=m,α=α,γ=β B: m=m,α=α,γ=β C: m=m,α=α,γ=-β D: m=m,α=α,γ=-β
普通圆柱蜗杆传动的正确啮合条件是() A: m=m,α=α,γ=β B: m=m,α=α,γ=β C: m=m,α=α,γ=-β D: m=m,α=α,γ=-β