修改two.prg文件中的SQL SELECT命令,使之正确运行时可以显示如下结果:

题型:问答题

问题:

修改two.prg文件中的SQL SELECT命令,使之正确运行时可以显示如下结果:
组别 组长 组员
1 朱茵 赵一军
1 朱茵 李龙
1 朱茵 王婧
1 朱茵 王一凡
2 李毅 刘严俊
2 李毅军 杨小萍
2 李毅军 胡小晴
3 吴军 杨兰
3 吴军 吴伟军
3 吴军 赵小青
3 吴军 韦小光
4 杨一明 李琪
4 杨一明 杨小阳
4 杨一明 李楠
4 杨一明 胡一刀

考点:计算机等级考试VISUALFOXPRO(A)二级VISUALFOXPRO笔试
题型:问答题
请认真阅读下列短文,并根据所读内容在文章后表格中填入最恰当的单词。注意:每空一词。
Prepackaged, mass-produced snack foods are hugely popular in grocery stores around the world. Many people are accustomed to choosing snack foods in grocery stores.
The first problem with packaged snack foods like cookies, crackers, and other bite-sized options is that they are often loaded with unhealthy materials. The reason for this is fairly easy to understand. Mass-produced foods need to be uniform in color, taste and so on. In order to achieve this uniformity, snack food producers use sugar, salt, and other chemical preservatives (防腐剂) and coloring materials in large amounts. These materials contribute to a rather unhealthy food.
In addition to requiring uniformity of taste and appearance, mass-produced snack foods like potato chips and candies need to be shelf stable. Preservatives and complex packaging make products shelf stable, but this stability and non-perish ability (抗腐性) often come at the expense of nutrition.
One reason that pre-made snacks are so popular in grocery stores is their prices. Food producers can keep costs down by using established production facilities and processes to quickly produce a huge amount of food. Shoppers are drawn to what they see at low prices.
People who are interested in improving the quality of their snacking can use magazines, books, and the Internet to discover a lot of healthy snacking tips and ideas. Even television shows about health and food sometimes talk about healthy snacking alternatives. Some healthy snacks, like fresh fruit, require no preparation at all.
Once people are aware of the drawbacks of clearly cheap and easy snack foods, they can start turning to better options. Soon, perhaps, the old and unhealthy snack options will no longer be profitable for food producers.
Title: Prepackaged, mass-produced snack foods
Fact
Prepackaged, mass-produced snack foods are well 小题1: ________ around the world.
小题2: _______
•Having preservatives, coloring materials and 小题3:________  packaging
• Having uniformity of 小题4:________ and appearance
• Being shelf stable
• Being at low 小题5: ________
Problems
• 小题6: ________ unhealthy materials
• Being shelf stable and non-perishable leading to some nutrition
小题7:________
Measures
•Discover healthy snacking tips and ideas by 小题8:________ magazines, books, the Internet and television shows.
Conclusion
• People will turn to better options once 小题9: _______ the drawbacks of cheap and easy snack foods.
• The old and unhealthy snack foods will no longer bring 小题10: _______ to food producers.
 
题型:问答题

女性,30岁,查体发现子宫颈肥大,行宫颈细胞学检查未见异常。其治疗正确的是()

A.子宫颈锥切

B.子宫颈切除

C.预防性应用抗生素

D.微波治疗

E.定期随访

题型:问答题
小明用刻度尺测得某物体的长度是25.90cm.这可能是下列哪个物体的长度(  )

A.粉笔

B.物理课本

C.课桌

D.黑板

题型:问答题

当地面5m以下存在剪切波速大于相邻上层土剪切波速()倍的土层,且其下卧岩土的剪切波速均不小于400m/s时,可取地面至该土层顶面的距离作为覆盖层厚度。

A.2

B.2.5

C.3

D.3.5

题型:问答题

已知真实值为200度,测量结果为202度,其绝对误差是()。

A.2度

B.–2度

C.+-2度

D.3度

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