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问题 单项选择题

永存动脉干的二维超声检查有什么特殊所见（）

A.两个大动脉显示平行并列

B.肺动脉显示明显大于主动脉

C.从各个切面图均不能显示独立存在的主肺动脉或其分支，只能从动脉干显示其存在

D.肺动脉与左心室连接

E.肺动脉从冠状动脉起源

答案

参考答案：C

阅读理解
阅读理解
                       Join Us for a Day at Sun Valley Amusement Park
       Children aged 10 to 14 are invited to take part in the "Event of the Summer" at Sun Valley
Amusement Park, the most popular amusement park on the East Coast. Sun Valley has more than
80 amusement rides. For sports lovers, there are basketball courts, an indoor baseball field, and
climbing walls.
       No amusement park would be complete without a gift shop. Sun Valley has two.
       You won't want to miss out on this day of fun. Join us at Sun Valley Amusement Park on July
14 Register(登记)early.
       The cost of the trip is $25. This includes tickets and all rides.
       We suggest that all children bring lunch.
       Buses leave at 9:00 AM and return at 5:00 PM.
       Rain Date: Wednesday, July 16.
       Register at the Children's RecreationCenter at theTown Hall by July 3.
       A one-day registration will also be held on July 1 at the Brown School.
       For more information, call Jane Parks at 555-7267


1. Who can take part in the "Event of the Summer"?
A. Children under 5
B. Children over 16
C. Children aged 10-14
D. Children aged 5-9
2. The children had better bring ____
A. a basketball
B. lunch
C. a gift
D. gloves
3. When can children register at the Brown School?
A. On July 1
B. On July 3
C. On July 14
D. On July 16
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单项选择题

在Visual FoxPro中，假设教师表T(教师号，姓名，性别，职称，研究生导师)中，性别是C型字段，研究生导师是L型字段。若要查询“是研究生导师的女老师”信息，那么SQL语句“SELECT*FROM TWHERE＜逻辑表达式＞”中的＜逻辑表达式＞应是______。

A．研究生导师AND性别="女"
B．研究生导师OR性别="女"
C．性别="女"AND研究生导师=.F.
D．研究生导师=.T.OR性别=女
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