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理想运算放大器,Ad=()、Ri=()、Ro=()。
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设当前目录是根目录,使用第()组命令不能在一级子目录SUB1下建立二级子目录SUB11。A、CD SUB1(回车)MD SUB11B、MD SUB1/SUB11C、MD SUB11D、MD/SUB1/SUB11
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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(String args[]) { Sub sub = new Sub(“Hello”); System.out.println(sub.i); } } What is the result?()A
0B
1C
2D
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考题
单选题永续盘存法公式为()A
Ksubt/sub+1=Isubt/sub-(1-δ)Ksubt/subB
Ksubt/sub+1=It+(1-δ)Ksubt/subC
Ksubt/sub+1=Isubt/sub+(1+δ)Ksubt/subD
Ksubt/sub+1=Isubt/sub-(1+δ)Ksubt/sub
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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?()A
Compilation will fail.B
Compilation will succeed and the program will print “0”C
Compilation will succeed and the program will print “1”D
Compilation will succeed and the program will print “2”
考题
单选题正态分布时,算术平均数、中位数、众数的关系为()A
msub0/sub<msube/sub<(xB
msub0/sub=msube/sub=(xC
msub0/sub>msube/sub>(xD
msube/sub<msub0/sub<(x
考题
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
prIsub0/sub且rsub0/subIsub0/sub /pB
prIsub0/sub/3且rsub0/subIsub0/sub/3 /pC
pIsub0/sub/3rspanI/spansub0/sub且Isub0/sub/3rsub0/subr0Isub0/sub /r0/pD
p无条件限制 /p
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