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问题 单项选择题

本线封锁，邻线（线间距小于6.5m）来车，120km/h＜邻线速度vmax≤160km/h时，下道距离不小于（）m。

A、本线可不下道

B、来车可不下道，但本线必须停止作业

C、下道距离不小于2000m

D、本线必须下道

答案

参考答案：B

填空题

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.

10.（）
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单项选择题

销售促进目标是从总的促销组合目标中引伸出来的，而它在总体上又是受企业（）所制约的。

A、销售目标

B、营销总目标

C、价格目标

D、渠道目标
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