一定条件下，向2L密闭容器中加入2molN2和10molH2，发生反应N2 + 3H2
2NH3，2min时测得剩余N2为1mol，下列化学反应速率表示不正确的是
| A．v(N2) = 0.25mol/(L·min) | B．v(H2) = 0.75mol/(L·min) |
| C．v(NH3) = 1mol/(L·min) | D．v(NH3) = 0.5mol/(L·min) |
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