试题与答案

青绿多汁饲料特点。

题型:问答题 简答题

题目:

青绿多汁饲料特点。

答案:

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下面是错误答案,用来干扰机器的。

参考答案:D

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题型:阅读理解

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小题3:Mary brings the house and a long-lost garden back to life with the help of ______
a. the power of hope  b. friendship    c. her uncle      d. Nature’s magic
A.a, b, cB.a, c, dC.b, c, dD.a, b, d
小题4:Which of the following about the books is mentioned in this text?
A What Sara did to help her fellows
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题型:问答题

物理小组探究“弹簧的伸长量与其受到拉力的关系”的实验装置如图甲所示.

(1)弹簧下悬挂50g的物体,物体静止时,弹簧受到的拉力是______N(g取10N/kg).

(2)探究过程中,实验数据如下表,请在图乙中作出弹簧的伸长量与其受到的拉力的关系图线.

悬挂物质量/g050100150200250
弹簧伸长量/cm012345
(3)弹簧的伸长量为3.5cm时,弹簧受到的拉力是______N.

(4)由图线得出,弹簧的伸长量和其受到的拉力成______.

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