目前,种植牙中作为种植体最常用的材料是A.合成树脂 B.陶瓷 C.钛 D.不锈钢 E

题型:单项选择题

问题:

目前,种植牙中作为种植体最常用的材料是

A.合成树脂

B.陶瓷

C.钛

D.不锈钢

E.金

考点:口腔执业医师口腔执业医师91
题型:单项选择题

由承包人负责采购的材料设备,到货检验时发现与标准要求不符,承包人按工程师要求进行了重新采购,最后达到了标准要求。处理由此发生的费用和延误的工期的正确方法是( )。

A.费用由发包人承担,工期给予顺延
B.费用由承包人承担,工期不予顺延
C.费用由发包人承担,工期不予顺延
D.费用由承包人承担,工期给予顺延

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冬天用一热泵向室内供热,使室内温度保持20℃。已知房屋的散热损失是50000kJ/h,室外环境温度-10℃,则带动该热泵所需的最小功率为()kW。

A.1.25

B.1.36

C.1.42

D.1.68

题型:单项选择题

幕墙构架上下立柱之间应有不小于15mm的缝隙,并应采用芯柱连接,下面有关“芯柱”的说法哪些是正确的()

A、芯柱总长度不应小于400mm

B、芯柱与立柱之间应有一定的相对位移能力

C、芯柱与立柱应紧密接触

D、芯柱与下柱之间应采用不锈钢螺栓固定

题型:单项选择题

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.

4.()

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接触线标称高度。

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