某学校兴趣小组的同学在研究弹簧弹力的时候，测得弹力的大小F和弹簧长度L关系如图所示，试由图线确定：

（1）弹簧的劲度系数_______________N/m。

（2）弹簧伸长0.1米时，弹力的大小________________N。

B

小题1:The above posts center on a blog passage written by ________.

A．Wendy

B．Julie

C．Anne

D．Nancy小题2:How many people have joined in the discussion?

A．2

B．3

C．5

D．7小题3: Nancy and Anne share the opinion that _________.

A．work can bring joy to people

B．creativity may help reduce depression

C．beauty is the most important in life

D．different people handle things differently小题4:Which of the following about Julie is NOT true?

A．Julie is the CEO of a company.

B．Julie was once attracted to artwork.

C．Julie has never been attacked publicly.

D．Julie was honest about her past experiences.