On a weather map,a large letter “h” means（）
1、A vessel with a large GM will（）.
A vessel with a large GM will（）.Ahave more resistance to listing in case of damageBhave less tendency to have synchronous rollingCbe less likely to have cargo shiftDride more comfortably
2、A large oil fire on the deck of a ship
A large oil fire on the deck of a ship can be fought most effectively with（）.Adry chemicalBfoamChigh-velocity fogDwater
3、Widely spaced isobars on a weather map
Widely spaced isobars on a weather map indicate（）.AHigh windsBGentle breezesCIce，snow or frozen rainDProbability of tornado
4、A line on a weather chart connecting p
A line on a weather chart connecting places which have the same barometric pressure is called an（）.AisothermBisallobarCisobarDisotope
5、Letters, maps and pictures are（）
Letters, maps and pictures are（）AessaysBfilesCdocumentsDrecord
6、In reading a weather map，closely space
In reading a weather map，closely spaced pressure gradient lines would indicate（）.Ahigh windsBhigh overcast cloudsCcalm or light windsDfog or steady rai