根据《社会保险费征缴暂行条例》，下列属于缴费单位办理社会保险登记事项的内容为（）。A

癫痫状态控制发作后，应使用长效药物过渡和维持，早期常用（）

A.卡马西平

B.苯巴比妥

C.丙戊酸钠

D.苯妥英钠

E.乙琥珀

B Egyptian Villages 埃及村落

Most of the inhabitants live in mud-brick homes, their (1)  walls insulating against the afternoon heat. Flat roofs, exposed (2)  the northern evening breezes, serve as cool sleeping (3)  as well as storage areas. Villagers plaster the outer walls (4)  often trim them in blue, a color they believe (5)  off the evil eye. As a man becomes richer, (6)  can add a second story to his house perhaps (7)  his married son. Those villagers who have made the (8)  to Mecca paint the legend of their trip on (9)  outer walls of their homes. Such hajj houses, along (10)  the mosques, are the most distinguished buildings in a (11)

Some villagers build ornate pigeon coops close to their (12) , using the birds as food and their droppings to (13)  crops. Many houses still have dirt floors and lack (14)  or running water; women with jars balanced on their (15)  make the trek to the community well, and children donkeys haul the (16)  liquid in jerry cans.

All (17)  said, government sponsored building programs have also brought newer (18)  residences and utilities to some villages, particularly those outside (19)  Nile Valley in the Oases and the Red Sea (20)  areas.

7.（）

B产品的边际贡献率为( )。

A．30%

B．70%

C．40%

D．60%

下列关于质点的说法中正确的是（）

A.体积、质量都极小的物体都能看成质点

B.当研究一列火车通过桥所需的时间时，可以把火车视为质点

C.研究自行车的运动时，因为车轮在转动，所以无论研究哪方面，自行车都不能视为质点

D.研究地球绕太阳的公转时把地球看作质点

对归档资料的要求不包括（）。

A.装订整齐

B.任意装订成册

C.图面整洁

D.整齐统一的封面