绕多轴飞行器纵轴的是什么运动()
A.滚转运动
B.俯仰运动
C.偏航运动
参考答案:A
制作金属烤瓷桥金属支架蜡型叙述正确的是()
A.0.5mm
B.1mm
C.2mm
D.2.5mm
E.3mm
The shop doesn't have brown sugar in()at the moment, but they expect to have some tomorrow.
A.store
B.storage
C.stock
D.portion