River currents tend to().
A stretch where the channel changes from one side of the river to the other is called a ().
he longest river in Canada is().
After you enter the Ohio River at Cairo,the Map shows that the deepest water under the Illinois Central RR Bridge would be found under which span? ()
The dam was built along the river _____ floods.
For the deepest water when rounding a bend in a river,you should navigate your vessel().
After you get underway,what is the first river gage you will pass? ()
The controlling depth of the river is().
河流阶地(river terrace)
Washington, the capital of the US, is on the ()river.