互见中,一艘操限船与一艘失控船相遇致有构成碰撞危险,则()
A.操限船为让路船
B.失控船为让路船
C.两船均应运用良好的船艺采取行动以避免碰撞
D.两船均无须采取行动
参考答案:C
The reporter said that the UFO________ to the tall building when he saw it. [ ]
A. was traveling
B. traveled
C. had been traveling
D. has traveled
在玻璃液体温度计,压力式温度计和双金属温度计中耐振最好的是()。
A.双金属
B.玻璃液体
C.压力式