题目

对于反应4NH3＋5O24NO＋6H2O，下列为4种不同情况下测得的反应速率，其中能表明该反应进行最快的是 A．v(NH3)＝0.2 mol/(L·s)      B．v(O2)＝14 mol/(L·min) C．v(H2O)＝0.25 mol/(L·s)     D．v(NO)＝9 mol/(L·min) 答案：AOnce ________ at a table, left-handers need to move the water glasses put on the right side to their more convenient left side.A．seatingB．having seatedC．seatedD．seat