8.29换库放狗攒人品

beneau · 发表于 2014-8-30 20:04:08

sara，你说的那个象牙雕刻是不是这个，请确认。

A sudden increase in the production of elephant ivory artifacts on the Mediterranean coast of North Africa occurred in the tenth century. Historians explain this increase as the result of an area opening up as a new source of ivory and argue on this basis that the important medieval trade between North Africa and East Africa began at this period.
Each of the following, if true, provides some support for the historians’ account described above EXCEPT?
A. In East Africa gold coins from Mediterranean North Africa have been found at a tenth-century but at no earlier sites.
B. The many surviving letters of pre-tenth-century North African merchants include no mention of business transactions involving East Africa.
C. Excavations in East Africa reveal a tenth-century change in architectural style to reflect North African patterns.
D. Documents from Mediterranean Europe and North Africa that date back earlier than the tenth century show knowledge of East African animals.
E. East African carvings in a style characteristic of the tenth century depict seagoing vessels very different from those used by local sailors but of a type common in the Mediterranean.

beneau · 发表于 2014-8-30 20:11:06

另外请确认你说的另外一个逻辑题目是不是这个

Outbreaks of Rift Valley fever occur irregularly in East Africa, several years apart. When outbreaks do occur, they kill thousands of cattle. A livestock vaccine against the disease exists but is rarely used. It is too expensive for farmers to use routinely, and since it is not effective until a month after vaccination, administering it after an outbreak begins helps very little. Nevertheless, experts predict that use of the vaccine will increase significantly within the next few years.
Which of the following, if true, provides the strongest justification for the experts’ prediction?
A. Rift Valley fever is spread by mosquitoes, but each outbreak is so widespread that it is impractical to control it by using insecticides.
B. When an outbreak of Rift Valley fever occurs, unaffected countries often refuse to import livestock from the countries affected by the outbreak.
C. It would take less than a month for producers of the vaccine to adjust their production operations to cope with a large increase in demand.
D. Many cattle farmers in East Africa are nomadic or live in remote villages, and such farmers, who have little access to modern veterinary medicine, are particularly hard hit by outbreaks of Rift Valley fever.
E. Recently published research has shown that certain identifiable climatic conditions are almost invariably followed, within two to five months, by an outbreak of Rift Valley fever.

sarahfighting · 发表于 2014-9-2 09:49:14

beneau 发表于 2014-8-30 20:04
sara，你说的那个象牙雕刻是不是这个，请确认。

A sudden increase in the production of elephant ivory ...

yes exactly

sarahfighting · 发表于 2014-9-2 09:50:06

beneau 发表于 2014-8-30 20:11
另外请确认你说的另外一个逻辑题目是不是这个

Outbreaks of Rift Valley fever occur irregularly in East ...

no 不对不是这题是填空的那种

florachou1201 · 发表于 2014-9-4 10:52:33

除以6余9..不可能把？

wangluyao1013 · 发表于 2014-9-20 00:44:27

这道数学题我做的最后7排没有剩余座位啊～应该是0把？？？？

[原始] 8.29换库放狗攒人品

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