在化学反应3H₂+Fe₂O₃2Fe+3H₂O中，反应物中各物质间的质量比为（　　）

Music

    Opera at Music Hall:1243 Elm Street.The season runs June through August,with additional performances in March and September.The Opera honors Enjoy tho Arts membership discounts.Phone:241-2742.http://www.cityopera.com.

    Chamber Orchestra:The Orchestra plays at Memorial Hall at 1406 Elm Street,which offers several concerts from March through June.Call 723-1182 for more information.http://www.chamberorch.com.

    Symphony Orchestra:At Music Hall and Riverbend.For ticket sales,call 381-3300.Regular season runs September through May at Music Hall in summer at Riverbend.http://www.symphony.org/home.asp.

    College Conservatory of Music (CCM):Performances are on the main campus（校园）of the university,usually at Patricia Cobbett Theater.CCM organizes a variety of events,including performances by the well-known LaSalle Quartet,CCM's Philharmonic Orchestra,and various groups of musicians presenting Baroque through modern music. Students with I.D.cards ban attend the events for free. A free schedule of events for each term is available by calling the box office at 556-4183.http://www.ccm.uc.edu/events/calendar.

    Riverbend Music Theater:6295 Kellogg Ave.Large outdoor theater with the closest seats under cover (price difference).Big name shows all summer long.Phone:202-6220. http://www.riverbendmusic.com.

We often play ___________ basketball together(一起) in our free time.

将函数y=sin(x+$\frac{\pi }{6}$)图像上各点的横坐标缩短到原来的$\frac{1}{2}$倍（纵坐标不变），再向右平移$\frac{\pi }{3}$个单位，那么所得图像的一条对称轴方程为（   ）