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【单选题】
在数据库的概念设计中，最常用的概念模型是（ ）。
A.
逻辑模型
B.
物理模型
C.
形象模型
D.
实体联系模型
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举一反三
【多选题】常见的受弯、剪、扭的构件有（）
A.
雨蓬梁
B.
折梁
C.
吊车梁
D.
现浇框架边梁
E.
柱
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【单选题】-Hello，may I speak to Mary，plrase?     --__________ .
A.
No，hold on
B.
I’m mary
C.
This is Mary speaking
D.
Wait for
查看完整题目与答案
【单选题】一般住宅中的楼板，最常见的是()基本构件。
A.
受弯
B.
受压
C.
受拉
D.
受扭
查看完整题目与答案
【判断题】在链传动中,链节距选择越大则承载能力越大,但动载荷也大。
A.
正确
B.
错误
查看完整题目与答案
【单选题】听力原文：WA I'm interested in your packaging system, but it's so much more expensive than your competitors'. MB You're right. Our prices are definitely higher than systems from other brands in the same ca...
A.
They are made with high-quality parts.
B.
They come with training and maintenance plans.
C.
They are built according to customer specifications.
D.
They have more functions than systems made by competitors.
查看完整题目与答案
【单选题】钢筋混凝土柱子是建筑工程中常见的( )构件。
A.
受拉
B.
受弯
C.
受压
D.
受扭
查看完整题目与答案
【单选题】I’m used to ________ in the house which _______ to keep books and magazines.
A.
living; uses
B.
live; was used
C.
live; used
D.
living; was used
查看完整题目与答案
【单选题】I'm writing to()a position as a computer engineer in your company.
A.
thank for
B.
wait for
C.
apply for
查看完整题目与答案
【简答题】设当前工作目录中有两个数据库表：课程表（表名为KC）和成绩表(表名为CJ),它们均属于数据库JXSJ。课程表包含课程代码(字段名为KCDM)和课程名称（字段名为KCMC）等字段,成绩表包含学生选修的课程代码(字段名为KCDM)和成绩（字段名为CJ,数据类型为数值型）等字段。如果要查询每门课程的最高成绩,可用下列SELECT-SQL命令： SELECT Kc.kcdm AS 课程代码,Kc.k...
查看完整题目与答案
【单选题】听力原文：M: I'm going to Hong Kong and Singapore next month. W: Oh, really? How nice! I was in Hong Kong last year and I eally enjoyed it. M: And what about Singapore? W: Well, it's smaller, and much less...
A.
It's much better than Hong Kong.
B.
It's smaller than Hong Kong but more crowded.
C.
It has better shops and stores than Hong Kong.
D.
It's cleaner and much less crowded than Hong Kong.
查看完整题目与答案
相关题目：
【多选题】常见的受弯、剪、扭的构件有（）
A.
雨蓬梁
B.
折梁
C.
吊车梁
D.
现浇框架边梁
E.
柱
查看完整题目与答案
【单选题】-Hello，may I speak to Mary，plrase?     --__________ .
A.
No，hold on
B.
I’m mary
C.
This is Mary speaking
D.
Wait for
查看完整题目与答案
【单选题】一般住宅中的楼板，最常见的是()基本构件。
A.
受弯
B.
受压
C.
受拉
D.
受扭
查看完整题目与答案
【判断题】在链传动中,链节距选择越大则承载能力越大,但动载荷也大。
A.
正确
B.
错误
查看完整题目与答案
【单选题】听力原文：WA I'm interested in your packaging system, but it's so much more expensive than your competitors'. MB You're right. Our prices are definitely higher than systems from other brands in the same ca...
A.
They are made with high-quality parts.
B.
They come with training and maintenance plans.
C.
They are built according to customer specifications.
D.
They have more functions than systems made by competitors.
查看完整题目与答案
【单选题】钢筋混凝土柱子是建筑工程中常见的( )构件。
A.
受拉
B.
受弯
C.
受压
D.
受扭
查看完整题目与答案
【单选题】I’m used to ________ in the house which _______ to keep books and magazines.
A.
living; uses
B.
live; was used
C.
live; used
D.
living; was used
查看完整题目与答案
【单选题】I'm writing to()a position as a computer engineer in your company.
A.
thank for
B.
wait for
C.
apply for
查看完整题目与答案
【简答题】设当前工作目录中有两个数据库表：课程表（表名为KC）和成绩表(表名为CJ),它们均属于数据库JXSJ。课程表包含课程代码(字段名为KCDM)和课程名称（字段名为KCMC）等字段,成绩表包含学生选修的课程代码(字段名为KCDM)和成绩（字段名为CJ,数据类型为数值型）等字段。如果要查询每门课程的最高成绩,可用下列SELECT-SQL命令： SELECT Kc.kcdm AS 课程代码,Kc.k...
查看完整题目与答案
【单选题】听力原文：M: I'm going to Hong Kong and Singapore next month. W: Oh, really? How nice! I was in Hong Kong last year and I eally enjoyed it. M: And what about Singapore? W: Well, it's smaller, and much less...
A.
It's much better than Hong Kong.
B.
It's smaller than Hong Kong but more crowded.
C.
It has better shops and stores than Hong Kong.
D.
It's cleaner and much less crowded than Hong Kong.
查看完整题目与答案