下列物质间的转化能一步实现的是（ ）
A．SiO2→H2SiO3
B．S→SO3
C．N2→NO2
D．Cl2→FeCl3
答案：D
________'s paintings are lively with bright blue skies and yellow flowers. [ ]
A. Gu Kaizhi
B. Vincent van Gogh
C. Leonardo da Vinci
D. Zhang Weiming
