当前互联网的日益盛行,网上商店遍地开花,网上购物正在悄悄地改变着人们的生活方式。

题型:选择题

问题:

当前互联网的日益盛行,网上商店遍地开花,网上购物正在悄悄地改变着人们的生活方式。对于网上购物的正确认识是(  )

A.可以节省流通中所需要的货币量,从而节约社会劳动

B.使得商品交换的结算方式发生了变化

C.只需要观念上的货币,而不需要现实的货币

D.意味着电子货币将代替纸币,货币职能发生了本质性的变化

考点:纸币(货币流通规律与纸币发行规律的关系、通货膨胀与通货紧缩、爱护人民币、电子货币)商品(使用价值、价值、价值量)一般等价物信用工具(信用卡、支票)
题型:选择题

齿轮要求表面强度、硬度高,而心部韧性好,所以可选用淬透性()的材料。

A.高

B.低

C.没有要求

D.中等

题型:选择题

对商业银行各级分支机构的评价,在实施频率和范围上看,以下说法准确的是()

A.按每三年一个周期,每年至少覆盖三分之一分支机构

B.按每两年一个周期,每年至少覆盖二分之一分支机构

C.按每四年一个周期,每年至少覆盖四分之一分支机构

D.以上说法均不准确

题型: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.

13.()

题型:选择题

微波炉的保险熔断,会引起()故障。

A.炉灯不亮,托盘不动,不加热

B.炉灯亮,托盘转动,不加热

C.屡烧保险管

D.不能烧烤

题型:选择题

每分通气量

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