装载危险货物、重大件货物及贵重货物时应通知（）到现场监装或指导。
A、船长
B、大副
C、二副
D、三副
参考答案：B
There appeared an _____ look on her face on hearing the _____ story.
A．astonishing; astonishing
B．astonished; astonished
C．astonished; astonishing
D．astonishing; astonished
闪烁现象说明（）
A.转移性骨肿瘤病情好转
B.转移性骨肿瘤病情无变化
C.转移性骨肿瘤病情加重
D.转移性骨肿瘤病情复发
E.以上都不是
