During the reign of()Wales was brought under English rule.
A、Henry III
B、Edward I
C、Edward II
D、Edward III
A、Henry III
B、Edward I
C、Edward II
D、Edward III
A、During operation at low speed B、During operation at rated speed, but low power output C、During acceleration D、All of the above
A、compression ratio of the engine B、volume of the engine C、relationships between pressure and volume during one stroke of the engine D、relationships between pressure and volume during one cycle of the engine
A、the abolition of villeinage B、the punishment of the King's ministers C、the increase of wages D、the reform of the church
A、after its arrival at the destination B、during the ship's voyage at sea C、before they come to the dock D、during the time when the loading or diacharging is going on