【单选题】Chart depth is the ______.
A.
vertical distance from the chart sounding datum to the ocean bottom, plus the height of tide
B.
vertical distance from the chart sounding datum to the ocean bottom
C.
average height of water over a specified period of time
D.
average height of all low waters at a place
【单选题】Charted depth is the ______.
A.
vertical distance from the tidal datum to the ocean bottom plus the height of the tide
B.
vertical distance from the tidal datum to the ocean bottom
C.
average height of water over a specified period of time
D.
average height of all low waters at a place
【单选题】Charted depth is the ______.
A.
vertical distance from the chart sounding datum to the ocean bottom,plus the height of tide
B.
vertical distance from the chart sounding datum to the ocean bottom
C.
average height of water over a specified period of time
D.
average height of all low waters at a place
【单选题】几种药物相比较时,药物的LD.50愈大则其:
【判断题】市场竞争归根结底还是产品的竞争,产品是企业竞争取胜的基础,也是企业进行产品策划的认识起点
【单选题】My inspiration is my grandmother, who's still alive at 96. She raised me from the time I was 8 on a dairy farm in Wisconsin. In another era she could have done what I do, although I didn't know what a...
A.
lives in the countryside
D.
does very well in tests
【单选题】The datum from which the predicted heights of tides are reckoned in the tide tables is ______.
B.
the same as that used for the charts of the locality
C.
the highest possible level
D.
given in table three of the tide tables