下列有关周恩来的外交活动的先后顺序排列正确的是（   ）
①迎接尼克松                     ②走出日内瓦会场 

③提出“求同存异”方针      ④会见田中角荣

图绘制的是水的温度和时间关系的曲线，其中能正确反映研究水沸腾过程中温度随时间变化关系的是（　　）

如图所示，人在岸上拉船，已知船的质量为m，水的阻力恒为f，当轻绳与水平面的夹角为θ时，船的速度为v，此时人的拉力大小为F，则（   ）

已知：如图，AB∥DE，求证：∠D+∠BCD﹣∠B=180°，

证明：过点C作CF∥AB．

∵AB∥CF（已知），

∴∠B=____（____）．

∵AB∥DE，CF∥AB（ 已知 ），

∴CF∥DE （____）

∴∠2+____=180° （____）

∵∠2=∠BCD﹣∠1，

∴∠D+∠BCD﹣∠B=180° （____）．

    Red is a particularly popular color in China. A pair of red shoes —____ they are for sports, dances or just fashion — is a must-have for every Chinese woman's shoe collection. For most Chinese brides, red shoes should also be worn ____ their big day,

    As women's feet____(connect) with female attraction, red shoes often emphasize this aspect____ convey a special beauty. In some classic Chinese novels, there are ____(describe) of charming women in red silk shoes.

If you wear a dark dress in cold____(season), a pair of red shoes can raise your ensemble（整套服装）to a____(high) level. They can also go with different levels of red color____(give) the wearer a lively and joyful look.

    ____ (sure) red will always be a beloved color for designers, and red shoes have also become a choice for many supermodels. If you are also a fan of this ____(energy) color, consider wearing a pair of red shoes for every Chinese Lunar New Year!