“The dignity of movement of an iceberg is due to only one -eighth of it being abov e water. ” This “iceberg ” analogy about prose style was put forward by( ).

The farming methods have been ________ improved with the invention of the new machine.

虽然我浑身酸痛，可是不干活儿不行呀!（）

翻译： I believe Chinese economic authorities recognize the problem and the next Five-Year Plan will address it effectively.

翻译：Driving southward from Cairo into the valley, I entered a landscape that owed little to the present era.