A plant makes its own food in its leaves . Water comes to the leaves through the roots . Air gets into the leaves through very small holes . The green coloring in the leaves uses the water and air to make the food for the plant . It also needs sunshine because a plant can make food only when the sun is shining.

Animals and people could not live without green plants . They both eat plants . People and some animals also eat the meat of some animals and these animals eat plants

小题1:A plant gets food from________

A．the sun

B．its leaves

C．its roots

D．the air小题2:What does the green coloring use to make the food for a plant?

A．Sunshine ,water ,air and the roots

B．Air ,sunshine and water

C．Water ,air and meat

D．Water ,sunshine and animals小题3:A plant has very small holes in its leaves for__________ to come in.

A．air

B．water

C．sunshine

D．green coloring小题4:A plant can make its food when it is _______.

A．cloudy

B．rainy

C．sunny

D．windy小题5:People would die without________

A．animals

B．meat

C．plants

D．leaves

一些人会用简单的加法机计算，一些人会用复杂的计算机计算。用计算机比用加法机可以在更短的时间内完成更多的计算。假设用这两种机器的价钱相同，那么，使用计算机的人一般来说要比使用加法机的人每小时挣钱多。

以下哪项是使上述论证的结论合乎逻辑的假设？（）

A．一般说来，会计是根据他们所作的计算数量以及他们所挣的钱数的不同而有区别的

B．一个会计花在工作上的时间越多，挣的钱越多

C．一个会计完成的计算量越多，挣的钱越多

D．一个会计进行的计算越准确，每小时的要价就越高