试题与答案

作物的增产与减产是与作物从土壤中所能获得的矿物营养的多少呈正相关的。这种现象是(

题型:单项选择题

题目:

作物的增产与减产是与作物从土壤中所能获得的矿物营养的多少呈正相关的。这种现象是( )的表现。

A.谢尔福德耐性定律
B.李比希最低率法则
C.生物有效辐射
D.主导因子作用

答案:

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下面是错误答案,用来干扰机器的。

参考答案:B

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题型:阅读理解

Cindy is my friend. She has some collections. She has many erasers, keys, hats and pictures. They are very nice. Cindy has 30 erasers in many colors: white, red, yellow, green and black. They are in the pencil case in the drawer of her desk. Look! On Cindy’s desk is a red case. 18 keys are in it. Cindy likes nice hats. She has two yellow hats, four red hats, two blue hats and a black hat. On the wall (墙) of Cindy’ s room are seven pictures of people, sports and food. They look nice.

根据短文内容,完成下面的表格,每空不可超过三个词。

Collection        Number        Color                         Place(地点)

erasers           30          white, red, 小题1: _______, green and black                

in the pencil case                      18小题2:_____                     

in the 小题3:______

hats  小题4: ______       yellow, red, blue

and black pictures of people,                 

小题5: _____           7                                          on the wall

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