若压杆在两个方向上的约束情况不同,且my>mz,那么该压杆的合理截面应满足的条件是( )。 A: Iy>Iz B: Iy<Iz; C: Iy=Iz D: lz=ly
若压杆在两个方向上的约束情况不同,且my>mz,那么该压杆的合理截面应满足的条件是( )。 A: Iy>Iz B: Iy<Iz; C: Iy=Iz D: lz=ly
下面程序的运行结果是 iX=80,iY=25____。void main(){ int iX,iY;iX=80;iY=25;printf("iX=%d,iY=%d\n",iX,iY);printf("iX/iY=%d,iX%iY=%d\n",iX/iY,iX%iY);}
下面程序的运行结果是 iX=80,iY=25____。void main(){ int iX,iY;iX=80;iY=25;printf("iX=%d,iY=%d\n",iX,iY);printf("iX/iY=%d,iX%iY=%d\n",iX/iY,iX%iY);}
void main() { int iX,iY,iM,iN; iX=10;iY=20; iM=iX++;iN=++iY; printf("iX=%d,iY=%d,iM=%d,iN=%d",iX,iY,iM,iN); iM=iX– –;iN=– –iY; printf("iX=%d,iY=%d,iM=%d,iN=%d",iX,iY,iM,iN); }
void main() { int iX,iY,iM,iN; iX=10;iY=20; iM=iX++;iN=++iY; printf("iX=%d,iY=%d,iM=%d,iN=%d",iX,iY,iM,iN); iM=iX– –;iN=– –iY; printf("iX=%d,iY=%d,iM=%d,iN=%d",iX,iY,iM,iN); }
若要求△pM=0.2, Et=0.1% ,用EDTA滴定单一金属离子的条件是 A: lgcK’MY≥5 B: lgcK’MY≥6 C: lgcK’MY ≥7 D: lgcK’MY ≥ 8
若要求△pM=0.2, Et=0.1% ,用EDTA滴定单一金属离子的条件是 A: lgcK’MY≥5 B: lgcK’MY≥6 C: lgcK’MY ≥7 D: lgcK’MY ≥ 8
#include "stdio.h" void main() { int iX,iY,iM,iN; iX=10;iY=20; iM=iX++;iN=iY++; printf("iX=%d,iY=%d,iM=%d,iN=%d",iX,iY,iM,iN); iM=iX--;iN=--iY; printf("iX=%d,iY=%d,iM=%d,iN=%d",iX,iY,iM,iN); }
#include "stdio.h" void main() { int iX,iY,iM,iN; iX=10;iY=20; iM=iX++;iN=iY++; printf("iX=%d,iY=%d,iM=%d,iN=%d",iX,iY,iM,iN); iM=iX--;iN=--iY; printf("iX=%d,iY=%d,iM=%d,iN=%d",iX,iY,iM,iN); }
配位滴定的条件是 A: 1gK MY≥8 B: 1gk′MY≥8 C: 1gC•KMY≥8 D: 1gC•K′MY≥8 E: 1gC•K MY≥6
配位滴定的条件是 A: 1gK MY≥8 B: 1gk′MY≥8 C: 1gC•KMY≥8 D: 1gC•K′MY≥8 E: 1gC•K MY≥6
生成: 6 7 8 6 7 8 6 7 8
生成: 6 7 8 6 7 8 6 7 8
金属离子M能够直接用EDTA滴定的最大Y(H)是( )。 A: logY(H) logK(MY) -8 B: logY(H)logK(MY) -8 C: logY(H) logK(MY) -8 D: logY(H)logK(MY) + 8
金属离子M能够直接用EDTA滴定的最大Y(H)是( )。 A: logY(H) logK(MY) -8 B: logY(H)logK(MY) -8 C: logY(H) logK(MY) -8 D: logY(H)logK(MY) + 8
“它黑黝黝地我在那里,牛似的模样。”中“黑黝黝”读 A: hēiyǒuyǒu B: hēiyōuyōu C: hēiyǒuyǒu和hēiyōuyōu都可以
“它黑黝黝地我在那里,牛似的模样。”中“黑黝黝”读 A: hēiyǒuyǒu B: hēiyōuyōu C: hēiyǒuyǒu和hēiyōuyōu都可以
配位滴定法中,能准确滴定的条件是 A: lgK’MY≤8 B: lgK’MY≥6 C: lgcMK’MY≥6 D: lgcMK’MY≥8
配位滴定法中,能准确滴定的条件是 A: lgK’MY≤8 B: lgK’MY≥6 C: lgcMK’MY≥6 D: lgcMK’MY≥8