教学过程的基本规律主要包括（）A、直接经验与间接经验相结合 B、掌握知识与发展智力相

对于由点电荷Q产生的电场，下列说法正确的是

A．电场强度的表达式为式中的Q就是产生电场的点电荷所带电荷量

B．在真空中，点电荷产生电场强度的表达式为，式中Q就是产生电场的点电荷所带电荷量

C．在真空中，式中Q是试探电荷所带电荷量

D．点电荷产生电场强度的表达式E=，与是否真空无关

某医院新建一栋综合楼，建设地点位于湖北省XX市内，框架结构，六层，建筑面积4500m²，建筑总高度25.4m，最大跨度18.6m，檐口标高22.8m，室外地面标高﹣0.6m。经计算该项目建筑工程有关费用如下：

跨及两平车的汽车应在其前轮外侧或内侧（）处钉固侧挡。

青娥丸5功效与作用

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.