使用窗体设计器，一是可以创建窗体，二是可以　　　　。

A、詹姆斯

B、维纳

C、罗森伯格

D、马斯洛

单选逻辑函数式+A+B+C,用公式化简法化简后的结果是（ ）

A、AB

B、0

C、A+B

D、1

A、Discussions

B、Note taking

C、Retelling

D、Role play

A、2.51；2.50

B、2.51；2.51

C、2.50；2.51

D、以上均不对

1 "Love Story" is a song performed by American singer-songwriter Taylor Swift. Like most of Swift's songs, this was based on a real experience. As a teenager, she had an argument with her parents over a boy - they thought he was a creep, and Taylor thought it was love. She told 60 Minutes that he was, indeed, a creep, but she thought he was amazing at the time. The pre-chorus of the song came into her head: "You were Romeo, you were throwing pebbles, and my daddy said, 'Stay away from Juliet.'" She grabbed her guitar and worked out the chords on her bedroom floor. 2 Taylor added that the song was met with indifference from her record company and her parents, but she fought for it, which she says was a fun experience because she had something to prove. 3 This could be about Swift's relationship with Joe Jonas of the Jonas Brothers, who she dated for much of 2008. The line "Romeo, take me some place we can be alone" relates to how they were never alone due to their popularity. "I sneak out to the garden" is symbolic of how they had to sneak around to have dates due to the paparazzi. 4 The song also talks about Swift's father and his objection to Joe, but Taylor ignored her father's advice and continued to date him until their breakup in October. 5 Swift won video of the year and female video of the year at the 2009 Country Music Television awards for this song's promo. On winning the latter award Swift said, "This is for everybody who still believes in love stories, because I do." This passage mainly talks about a famous song by Taylor Swift. What aspect of the song do you think it mainly addresses?

A、Melody.

B、Rhythm.

C、Lyrics.

D、Structure.

A、乙酰乙酸

B、β-羟丁酸

C、丙酮

D、以上都是