支墩坝的特点是扬压力（），挡水面板的坡度较缓，可充分利用面板上的（），工程量省。

B The Ancient Olympic Games古代奥林匹克运动会
According to historical records，the first (1) Olympic Games can be traced back to 776 BC.They (2) dedicated to the Olympian gods and were staged on the (3) plains of Olympia.They continued for nearly 12 centuries， (4) Emperor Theodosius decreed in 393 A.D.that aU such"pagan cults" (5) banned.
The oldest myth which concerns the beginning of the (6) Games is that of Idaios Daktylos Herakles.According to other (7) ，Zeus，the father of humanity，fought and defeated Cronus in a (8) for the throne of the gods.Finally，the well-known (9) Herakles is mentioned who staged games in Olympia in honour (10) Zeus,because the latter had helped him conquer Elis when (11) went to war against Augeas.
Through the 12 centuries of (12) Olympic Games，many wonderful athletes competed in the stadium and (13) hippodrome of ancient Olympia’s sacred area，moving the crowds with (14) great achievements.Although mortal，their Olympic victories immortalised them.Of (15) best athletes who left their mark on the sacred vallev (16) Olympia，some surpassed all limits and became legends by winning (17) successive Olympic Games and remaining at the forefront of their (18) for more than a decade.
The ancient Olympic Games were (19) a one.day event until 684 BC.when they were extended (20) three days.In the 5th century B.C.，the Games were extended again to cover five days.

压片时，颗粒最适宜的含水量应控制在()。

A．10%

B．7.5%

C．3%

D．5%

E．0.5%

建筑物最基本的要求是（）。

A.建筑形象

B.建筑物质技术条件

C.建筑功能

D.建筑使用性质

（10分）有 A、B、C三种短周期元素。A^-离子的电子层结构和氖原子相同；短周期元素中B的金属性最强；C的原子核内质子数是B的次外层电子数的2倍。试推断：

⑴. A元素的名称是______、B在周期表的位置表示为__             ____、C的原子结构示意图为__        ____；

⑵. B的氢氧化物的电子式是_____  _____；其晶体类型是         ，晶体中存在的化学键有        

⑶.C元素的最高价氧化物对应水化物与铜反应的化学方程式为:_____________ ___     _____。

下述哪一条不是局部E-R图集成为全局E-R图时可能存在的冲突 Ⅰ．属性冲突 Ⅱ．结构冲突 Ⅲ．命名冲突 Ⅳ．模型冲突

A．Ⅰ、Ⅱ和Ⅳ

B．Ⅰ、Ⅱ和Ⅲ

C．Ⅱ、Ⅲ和Ⅳ

D．都是