人民币教育储蓄存期为1年、3年和5年。（）

Shopping is easy with Safe-Buyer, a UK online shopping directory. All the online shopping sites listed on Safe-Buyer have been checked for security, delivery, range of goods and prices. We've reviewed the online shopping sites and awarded them a tick rating that's totally independent. So you can shop on the Internet without worrying. Here are some special offers on some shopping sites for you!

View All Jessops Photo Codes & Deals

Save l/3 0ff Photo Gift Orders at www.jessojessops.com/photo.

Jessops Photo is a perfect choice for all photo printing needs, including canvas prints, photo books and more.

First copy the code THIRDOFFGIFT. At the checkout, enter your voucher code for your discount!

Special activity time: 29/09/2013-29/10/2013.

View All Subside Sports Codes & Deals

Save 15% Off Orders at www. subsidesports.com

Online since 1997, Subside Sports offers an unmatched range of official football shirts and gifts: Over 5000 different products in stock with special offers up to 70% off. Official shirt printing for over 500 players. Personal Customer Services and quick delivery.

First copy the code NEW15PROMO. At the checkout, enter your voucher code for your discount!

Special activity time :  23/09/2013-23/10/2013.

View All Always Personal Codes & Deals

Free Delivery on Orders at www.alwayspersonal.co.uk.

As a personalized gifts website, alwayspersonal.co.uk offers many gifts for us to choose from, including Photo clocks, Personalized Bags, Photo Key rings, plus more. Al1 our products come with Free Standard Delivery! The majority of our products are dispatched within 24 hours.

First copy the code Free Delivery. At the checkout, enter your voucher code for your discount!

Special activity time: 26/10/2013-06/01/2014.

View An Personalized mugs Codes and Deals

Save 20% Off Orders at www.personalissedmugs.co. uk

Personalized gifts continue to grow and be a popular purchase online for all special[ occasions including Birthdays, Valentines, Easter, Retirement and Congratulations plus more. Personalized mugs are the most popular of all personalized products. Only doing mugs allows us to do mugs very well, with an excellent selection of mug types and themed mug designs.

First copy the code SUPERSAVER. At the checkout, enter your voucher code for your discount!

Special activity time: 24/09/2013-04/01/2014.

小题1:You can learn about the credit of an online store by________.

A．the speed of delivering goods

B．the length of running online stores

C．the independent tick rating

D．the varieties of goods小题2:If you've chosen some items from all the four websites above, the earliest date for special sale is_________.

A．September 23, 2013

B．November l, 2013

C．September 24, 2013

D．December l, 2013小题3:If you want to buy sportswear with a school name on it, you may visit_________.

A．www. jessops. com/photo

B．www. subsidesports. com

C．www. alwayspersonal. co. uk

D．www. personalisedmugs. co. uk小题4:If you have chosen your themed gift for graduation, you'll enter code _________ for your discount.

A．THIRDOFFGIFT

B．NEW15PROMO

C．Free Delivery

D．SUPERSAVER

水平面上有电阻不计的U形导轨NMPQ，宽度为L，M和P之间接入电动势为E的电源（不计内阻）。现垂直导轨搁一根质量为m、电阻为R的金属棒ab，并加一个磁感应强度大小为B范围较大的匀强磁场，方向与水平面夹角为θ且指向右斜上方。问：

（1）当ab棒静止时，ab棒受到的支持力和摩擦力各为多少？

（2）若B的大小和方向均能改变，则要使ab棒所受支持力为零，B的大小至少为多少？此时B的方向如何？

牛头刨床上进行刨削时，主运动是刨刀（刀具的往复运动），进给运动是工件做（）。

西部地区应依靠（）来引导重点区域加快发展。

A.推进重点经济区最后发展

B.鼓励城市圈集聚发展

C.引导资源富集地区集约发展

D.推动重点边境口岸城镇跨越发展

E.扶持少数民族地区加快发展

PASSIM高速控制电位器，（）转动可降低运行速度。