第1题:
第2题:
第3题:
什么是河流阶地?河流阶地是如何形成的?按照成因,阶地可分为哪几种类型?
第4题:
河流阶地有哪些基本类型?
第5题:
什么是河流阶地?导致河流阶地形成的原因有哪些?
第6题:
侵蚀阶地(erosion terrace)
第7题:
第8题:
He called out and jumped into the river.
He jumped into the river and pulled her out.
He jumped into the river and hardly swam.
He took off his clothes and called out.
第9题:
toward the inside of the bend
toward the outside of the bend
toward the center of the river just before the bend,then change course for the river's center after the bend
in the river's center
第10题:
runs
is running
run
ran
第11题:
第12题:
第13题:
第14题:
河流阶地(river terrace)
第15题:
简述河流阶地的成因?
第16题:
河流阶地
第17题:
The most important river is the River of ()
第18题:
Because the river is polluted
Because the river makes the earth more beautiful
Because the river can only offer water to animals
Because there are too many animals and plants in the river
第19题:
第20题:
abyssal plain
continental shelf
borderland
offshore terrace
第21题:
第22题:
第23题:
第24题: