If you______Mary, could you tell her I'd like to see her this weekend?A.go intoB.run intoC
If you______Mary, could you tell her I'd like to see her this weekend?
A.go into
B.run into
C.look after
D.look into
If you______Mary, could you tell her I'd like to see her this weekend?
A.go into
B.run into
C.look after
D.look into
第1题
A.[H⁺]=[HCO₃⁻]+[CO₃²⁻]+[OH⁻]
B.[H⁺]=2[HCO₃⁻]+[CO₃²⁻]+[OH⁻]
C.[H⁺]=[HCO₃⁻]+2[CO₃²⁻]+[OH⁻]
D.[H⁺]=[HCO₃⁻]+[CO₃²⁻]+2[OH⁻]
第3题
A.[H⁺]=[HCO₃⁻]+[CO₃²⁻]+[OH⁻]
B.[H⁺]=2[HCO₃⁻]+[CO₃²⁻]+[OH⁻]
C.[H⁺]=H[HCO₃⁻]+2[CO₃²⁻]+[OH⁻]
D.[H⁺]=H[HCO₃⁻]+[CO₃²⁻]+2[OH⁻]
第5题
A.C(金刚石)+O₂(g)→CO₂(g)
B.CO(g)+1/2O₂(g)→CO₂(g)
C.C(石墨)+O₂(g)→CO₂(g)
第8题
A.CO:N2,CN-,N2O+,CO2:N2O,NO2+,N3-,ClO4-:SO42-,PO43-,SiO44-
B.CO:N2,CN-,NO+,CO2:N2O,NO2+,N3-,ClO4-:SO42-,PO43-,SiO44-
C.CO:N2,CN-,BO+,CO2:N2O,NO2+,N3-,ClO4-:SO42-,PO43-,SiO44-
D.CO:N2,CN-,NO+,CO2:N2O,NO2+,N3-,ClO4-:SO32-,PO43-,SiO44-
第10题
A.错误
B.正确