问题补充:
单选题“Oh! You look so beautiful today!” he said to her. “________”. A.No, don say thatB.Its goodC.Thank youD.Yes, am I
答案:
C
时间:2021-09-06 18:54:33
单选题“Oh! You look so beautiful today!” he said to her. “________”. A.No, don say thatB.Its goodC.Thank youD.Yes, am I
C
单选题某溶液中存在的离子有:S2- HS- OH- Na+ H+ 则下列有关对
2020-03-08
单选题在下列反应中 其离子方程式不能用H++OH-=H2O表示的是A.Ba(OH)2溶
2018-11-30
单选题判断溶液为中性的依据是A.c(OH-)=1×10-7mol/LB.c(H+)=
2019-07-16
单选题下列说法中正确的是A.在25℃纯水中 c(H+)=c(OH-)=10-7
2019-06-22