【单选题】After synthetic ____, engineers had a better choice of material.
【单选题】全面从严治党基础在(),关键在(),要害在()。
【单选题】After synthetic ____, engineers had a better choice of material.
【判断题】全面从严治党基础在全面,关键在严,要害在治。()
【单选题】Mr. H never gets beyond corporal and material ________.
【单选题】物体处于平衡态,是指物体对于周围物体保持________。