单层衬里与复合衬里的区别是()。 A.单层衬里只有一层衬里而复合衬里有两层衬里 B.

题型:单项选择题

问题:

单层衬里与复合衬里的区别是()。

A.单层衬里只有一层衬里而复合衬里有两层衬里

B.单层衬里的渗沥液导流层较薄

C.单层衬里的膜下防渗保护层厚度较小

D.单层衬里的膜下防渗保护层的渗透系数较大

考点:岩土工程专业知识第六章特殊条件下的岩土工程第六章特殊条件下的岩土工程题库
题型:单项选择题

药材横断面异型维管束成数轮同心环状排列的药材有()

A.怀牛膝

B.大黄

C.何首乌

D.川牛膝

E.商陆

题型:单项选择题

在世界体操锦标赛上,体操运动员在上单杠之前,总要在受上抹些镁粉,而在单杠上回环动作时,手握单杠不能握得太紧,他这样做的目的是 [ ]

A.两者都是为了增大摩擦

B.两者都是为了减小摩擦

C.前者是为了减小摩擦,后者是为了增大摩擦

D.前者是为了增大摩擦,后者是为减小摩擦

题型:单项选择题

Questions from 36 to 40 are based on the following passage:Against this background, the WTO faces several daunting challenges. The first is to continue bringing down tariffs on traded goods. Average penalties have fallen steadily since the GATT’s formation but even the most open economies retain lofty barriers: for instance, America still charges a tariff of 14.6% on import of clothing,five times higher than its average levy.Resistance to tariff cuts is pest in agriculture. According to Tim Josling,a trade expert at Stanford University, tariffs and other barriers on farm goodsaverage a crippling 40% worldwide and create distortions that “destroy huge amounts of value”. A new set of global farm talks is planned to start in 1999. At the least,you might think, these could lock in impressive reforms in Latin America and encourage further watering-down of the European Union’s Common Agricultural Policy.But they will prove difficult: squabbles over agriculture almost sank the Uruguay round.

When is a new set of global farm talks planned to start( )

A.1980

B.1990

C.2001

D.at the end of 20th century

题型:单项选择题

当警衔高的人民警察在职务上隶属于警衔低的人民警察时,警衔高的为上级.( )

题型:单项选择题

多级账簿进行清息处理是将结算账户下采用()的多级账簿收付方积数清零。

A.借贷方分别计息

B.借贷方轧差计息

C.借方计息

D.贷方计息

更多题库