尿素高压系统NH3/CO2低于指标,如其他因素不变,高压洗涤器下液温度()。
单选题酶促反应速度(v)达到最大反应速度(Vmax)的80%时,底物浓度[S]为A 1KmB 2KmC 3KmD 4KmE 5Km
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单选题AI2=I3BI2=4I3CI2=2I3DI3=4I2
多选题1. class Super { 2. private int a; 3. protected Super(int a) { this.a = a; } 4. } ..... 11. class Sub extends Super { 12. public Sub(int a) { super(a); } 13. public Sub() { this.a= 5; } 14. } Which two, independently, will allow Sub to compile?()AChange line 2 to: public int a;BChange line 2 to: protected int a;CChange line 13 to: public Sub() { this(5); }DChange line 13 to: public Sub() { super(5); }EChange line 13 to: public Sub() { super(a); }
多选题在过程控制中,若TL=-3,Tu=3,u=1,σ=1,则( )。ACP=1 BCP=2/3 CCPk=1 DCPk=2/3
单选题( )被称为广义货币。A M0B M1C M2D M3
单选题给定子例行程序如下 SUBROUTINE SUB(K,A) B=K+2 A=A+B END 下列调用语句中正确的是()A CALL SUB(N,N)B CALL SUB(X,X)C CALL SUB(N+2,X)D CALL SUB(N,X+3)
填空题s=”this is the mainstring”,sub=”string”,strindex(s,sub)是()