C18:0是()
单选题class Super { public int i = 0; public Super(String text) { i = 1; } } public class Sub extends Super { public Sub(String text) { i = 2; } public static void main(String args[]) { Sub sub = new Sub(“Hello”); System.out.println(sub.i); } } What is the result?()A0B1C2DCompilation fails.
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单选题class super ( public int I = 0; public super (string text) ( I = 1 ) ) public class sub extends super ( public sub (string text) ( i= 2 ) public static void main (straing args) ( sub sub = new sub (“Hello”); system.out. PrintIn(sub.i); ) ) What is the result?()ACompilation will fail.BCompilation will succeed and the program will print “0”CCompilation will succeed and the program will print “1”DCompilation will succeed and the program will print “2”
单选题正态分布时,算术平均数、中位数、众数的关系为()A m0<me<(xB m0=me=(xC m0>me>(xD me<m0<(x
多选题下列表示中____的表示形式是正确的。AU95= 1%,veff =9 BUr= 1%,k=2 CuC=0. 5% DuC=±0 5%.k=1
多选题设up为标准正态分布的p分位数,则有( )。Au0.49>0 Bu0.3<u0.4 Cu0.5=0 Du0.23=-u0.77 Eu0.5=-u0.5
单选题( )被称为广义货币。A M0B M1C M2D M3
单选题已知某线声源长度为l0,在线声源垂直平分线上距线声源r0和r的分别为Lp(r0)和Lp(r),根据《环境影响评价技术导则声环境》,按公式Lp(r)=Lp(r0)-15lg(r/r0)近似计算该线声源的噪声影响时,应满足的条件是()。A r>I0且r0>I0 B r0/3且r00/3 C I0/3I0且I0/30I0 D 无条件限制