【单选题】电 感元件的 正弦交流电路中,电压有效值不变, 当 频率增大时,电路中电流将
【简答题】Nomenclature of N 2 O 5
【简答题】Exercises for Nomenclature of Inorganic Compounds (I) CaBr2 CuCl Fe2O3 HF KCN N2O3
【单选题】电感元件的正弦交流电路中,电压有效值不变,当频率增大时,电路中电流将
【单选题】Circle the correct nomenclature of the following structure
A.
N-2-[[[2-dimethylminomethyl]-5-furanyl] thio]ethyl- N’-methyl- 1-nitro - 1,1-ethenediamine
B.
N-2-[[[2-dimethylminomethyl]-5-furanyl]methyl]thio]ethyl-N’-methyl-1-nitro- 1,1-ethenediamine
C.
N-2-[[[5-dimethylminomethyl]-2-furanyl] thio]ethyl- N’-methyl-2 –nitro - 1,1 -ethenediamine
D.
N-2-[[[5-dimethylminomethyl]-2-furanyl]methyl]thio]ethyl- N’-methyl-2-nitro- 1,1-ethenediamine
【简答题】Nomenclature of the binary molecular compounds : CO 2 N 2 O 5 NH 3 PH 3 H 2 O 2 P 2 0 3 NO SO 3