A、CN-(K<sub>HCNsub>=6.2x10-10) B、S2-(K<sub>HS-sub>=7.1x10-15;K<sub>H<sub>2sub>Ssub>=1.3x10-7) C、F-(K<sub>HFsub>=3.5x10-4) D、CH<sub>3sub>COO-(K<sub>HAcsub>=1.8x10-5)
A、CN-(K<sub>HCNsub>=6.2x10-10) B、S2-(K<sub>HS-sub>=7.1x10-15;K<sub>H<sub>2sub>Ssub>=1.3x10-7) C、F-(K<sub>HFsub>=3.5x10-4) D、CH<sub>3sub>COO-(K<sub>HAcsub>=1.8x10-5)
A、Na<sub>2sub>OH(K<sub>bsub>=1.0x10-9) B、NH<sub>3sub>·H<sub>2sub>O(K<sub>bsub>=1.8x10-5) C、HAc(K<sub>asub>=1.8x10-5) D、HNO<sub>2sub>(K<sub>asub>=5.0x10-4)
A、x'<sub>1sub>>x<sub>1sub>和y'<sub>1sub>>y<sub>1sub> B、x'<sub>1sub><x<sub>1sub>和y'<sub>1sub><y<sub>1sub> C、x'<sub>1sub>=x<sub>1sub>和y'<sub>1sub>=y<sub>1sub> D、不确定
A、X=X<sub>Lsub>-X<sub>Csub>>0 B、X=X<sub>Lsub>-X<sub>Csub><0 C、X=X<sub>Lsub>-X<sub>Csub>=0 D、X=X<sub>Lsub>=X<sub>Csub>
A、(x<sub>Wsub>,x<sub>Wsub>) B、(x<sub>Fsub>,x<sub>Fsub>) C、(x<sub>Dsub>,x<sub>Dsub>) D、(0,x<sub>Dsub>/(R+1))
A、R=X<sub>Lsub>=X<sub>Csub> B、X<sub>Lsub>=X<sub>Csub>≠R C、X<sub>Lsub>>X<sub>Csub> D、X<sub>Lsub><X<sub>Csub>
A、u<sub>i1sub>=10mV,u<sub>i2sub>=0 B、u<sub>i1sub>=5mV,u<sub>i2sub>=7.5mV C、u<sub>i1sub>=2.5mV,u<sub>i2sub>=10mV D、u<sub>i1sub>=10mV,u<sub>i2sub>=5mV
A、M=X<sub>2sub>y; B、M=X<sub>3sub>x; C、M=X<sub>1sub>-X<sub>2sub>y±X<sub>3sub>x; D、M=X<sub>1sub>+X<sub>2sub>y±X<sub>3sub>x