女，54岁。有胆囊结石病史8年。上腹剧痛2天，向腰部放射，伴恶心、呕吐，血淀粉酶升高

戈尔巴乔夫上台后首先把政治改革作为重点，后又把重点转移到经济方面。[ ]

Questions from 31 to 35 are based on the following passage: Generally, cargo is carried in containers, but sometimes it is still shipped as breakbulk cargo. During the voyage, goods may be stacked on top of or come into violent contact with other goods. And the cargo might be dragged, pushed, rolled, or dropped during unloading, while moving through customs, or in transit to the final destination. Moisture is a constant concern because condensation may develop in the hold of a ship even if it is equipped with air conditioning and a dehumidifier(除湿机). Another aspect of this problem is that cargo may also be unloaded in precipitation, or the foreign port may not have covered storage facilities. Buyers are often familiar with the port systems overseas, so they will often specify packaging requirements. If the buyer does not specify this, be sure the goods are prepared using these guidelines: Pack in p containers, adequately sealed and filled when possible. To provide proper bracing in the container, regardless of size, make sure the weight is evenly distributed. Goods should be palletized when possible containerized. Packages and packing filler should be made of moisture-resistant material. To avoid pilferage, avoid writing contents or brand names on packages. Other safeguards include using straps, seals, and shrink wrapping. Observe any product-specific hazardous materials packing requirements. Normally, air shipments require less heavy packing than ocean shipments, though they should still be adequately protected, especially if they are highly pilferable. Finally, because transportation costs are determined by volume and weight, specially reinforced and lightweight packing materials have been developed for exporting. Packing goods to minimize volume and weight while reinforcing them may save money, as well as ensure that the goods are properly packed.

Rough handling in transit will do great harm especially to（）

A．containerized cargo

B．breakbulk cargo

C．palletized goods

D．none of the above

对于商界历史的阐述原则，正确的是：（）

A、应该尽量介绍企业成熟时期的历史，因为体系化的成功经验才值得借鉴。

B、很多人对商界历史的认识比较零散、浅显的原因是大脑容易记忆低价值浅层次的信息。

C、应该给别人阐述企业成功的秘诀和内部信息，因为这些信息是高价值的。

D、因为阐述的是企业的历史，所以应该只选择传统企业，新兴企业的历史不值得阐述。

对工件夹紧过程中，夹紧作用的好坏，会影响工件的加工精度，表面粗糙度以及（）。

A、加工性能

B、加工时间

C、加工尺寸

D、工件的定位

正均衡