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甲医疗机构拟从乙药品批发企业购进一种以前从未购进过的丙抗菌药物。

甲医疗机构应当保存加盖供货单位原印章的前述证明文件的复印件，保存期不得少于（）

A.1年

B.2年

C.3年

D.5年

答案

参考答案：D

解析：医疗机构应妥善保存首次购进药品加盖供货单位原印章的证明文件的复印件，保存期不得少于5年

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For sale

Antique door

Solid wood. Includes a coloured glass window near the top of the door.
Excellent condition. $300.
                                                                                Phone 9411-2987

Baby bed
Lovely bed, painted white. $310. Also travel bed and car seat. $500 for all, 
or will separate.                                               
                                                                                      Phone 4097-5701
Exercise bike

Near new. Bought for $1200, selling for $600.                                               
                                                                                   Call 0289-457-076

Furniture
Dining table and chairs, two double beds, leather sofa and loveseat, chest of
drawers, wardrobe, shelf. Come on and make an offer. Must sell this week.
                                                                        13/453 Crown Rd Fairburn

Golf clubs

Set of eleven. Ladies left hand. Also golf bag, balls. $675.
                                                                                      Phone 9765-9975

Computer

Pentium 166, CD-ROM, 32 RAM, 56K modern, sound, speaker, large
monitor, mouse, keyboard. $220.
                                                                                  Phone 9982-6720

Piano

Kowai Grand GS30, black, excellent action and sound, perfect condition,
music books and stool. $1800.                                              
                                                                                   Phone 9938-1044
TV

Bony 53cm with surround, remote control, with instruction book. Excellent
condition. $300.                                               
                                                                                   Phone 2039-6946

1. Which is the cheapest thing for sale?  
A. A baby bed.
B. A TV.
C. A piano.
D. A computer.
2. If you want to buy an exercise bike, you can call _______.  

A. 0289-457-076
B. 2039-6946
C. 9982-6720
D. 9765-9975

3. If you have only $600, you can buy _______.
A. an antique door and a baby bed
B. a computer and a piano
C. a TV and an antique door
D. a piano and furniture
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单项选择题

下列关于完全性左束支阻滞心电图表现的描述不正确的是（）。

A.QRS波群时限≥0.12秒

B.V1、V2导联呈rS波或QS波

C.Ⅰ、aVL、V5、V6导联R波增宽切迹

D.V5、V6导联常出现q波

E.ST-T方向与QRS主波方向相反
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