问题 单项选择题

北魏时,贾思勰的《齐民耍术》总结出一套个体农户农副兼营的精耕细作农业模式,反复强调农户不要过度扩大耕种面积,“宁可少好,不可多恶”。这表明()

A.精耕细作的目的是追求农业收益的最大化

B.精耕细作农业遏止了大土地所有制的发展

C.个体农户为主体的耕作模式抑制农业的进步

D.人口与土地的尖锐矛盾导致耕作模式的转变

答案

参考答案:A

阅读理解

     There are some basic things to know about kite flying that can help you to enjoy the sport more. Here

are a few of the most important ones.      

     First, if you have ever seen someone flying a kite in a movie, you probably saw him or her get the kite

off the ground by running into the wind. However, this is not the way to launch a kite. Most beginners will

find a "high start" launch to be the easiest. For a high start launch, have a friend stand about one hundred

feet away, facing into the wind. Your friend should face you and hold the kite gently. Place some tension(拉力) on the flying line by pulling gently on the line. With a steady breeze behind you, tug gently on the

line, and the kite will rise.      

     If your kite begins to dive (俯冲), don't panic or pull on the line. Dropping the reel (线轴) will cause it

to spin out of control, and could cause someone to be hurt. Simply let the line go slack (松弛的). This

usually will right the kite in midair.       

     For a kite that is pulling hard away from you, have a friend stand behind you and take up the slack line as you bring it in. Hand over hand, pull down the kite. It is very important to have gloves on to do this, or

you may burn or cut your hands. It is recommended (建议) that you always wear gloves while flying

kites.      

     When two kite lines get crossed, pulling may cause enough friction to cut one or both of the lines.

Instead of pulling, both fliers should walk towards one another until their lines uncross as they pass.

( ) 1. To launch a kite, run into the wind holding the kite behind you.

( ) 2. In a high start launch, a friend stands about one hundred feet away from you holding the kite. 

( ) 3. If your kite begins to dive from the sky, immediately drop the reel.

( ) 4. It is suggested that you always wear gloves when flying a kite.

( ) 5. If your kite is pulling hard away from you, you should run after it.

( ) 6. If two kite lines get crossed, you should pull them apart.

单项选择题