题目内容

According to the speaker, David thinks the two different approaches

A. are working in parallel.
B. are working in harmony.
C. are working in discord.
D. are working in collaboration.

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关系型数据库中，实现表与表之间的联系是通过______。

A. 实体完整性规则
B. 参照完整性规则
C. 用户自定义的完整性
D. 值域

等高式大放脚的砌法为二皮一收，每次收进宽度为（）砖长。

A. 1/3
B. 1/4
C. 1/5
D. 1/6

The congress, by a two-third vote in each house, may ______ an amendment to the Constitution.

A. start
B. initiate
C. begin
D. propose

雨篷梁宽一般与墙厚相同，为了保证足够的嵌固，雨篷梁伸入墙内的支撑长度应不（）。

A. 大于370mm
B. 小于370mm
C. 大于270mm
D. 小于270mm