成矿物质的运移

A. 词起源于诗
B. 词起源于“曲子词”
C. 词起源于民间
D. 词起源于酒令艺术

A. 上级党委的决议
B. 指示
C. 同级党代表大会
D. 下级党组织建议

A. receive shore-to-ship distress alerting
B. transmit ship-to-shore distress alerting
C. receive message for public correspondence
D. transmit and receive locating signal