树脂固砂方法可分为（）和（）方法。

患者，女，53岁，右耳渐进性听力下降伴耳鸣1年，患者自耳鸣以来长期失眠，不伴耳痛，否认中耳炎病史，近半年月经不规律。查体双外耳道干燥通畅，鼓膜完整光锥可见。纯音测听结果示左耳平均听阈15dB，右耳自4000Hz开始高频下降，高频平均听阈50dB，为感音神经性聋，MRI示C6～C7椎间盘稍突出，余未示异常。

为了明确评估与治疗，应先行（）

A.甘油试验

B.耳鸣匹配与残余抑制试验

C.血常规

D.ABR

E.DPOAE

F.以上全不对

随机储存的适用原则是（）。

A.仓库空间小，储存货物的品种少，量较多

B.仓库空间大，储存货物的品种少，量较多

C.仓库空间小，储存货物的品种多，量较少

D.仓库空间大，储存货物的品种少，量较多

阅读理解。

     The koala. one of Australia's most treasured creatures, is introuble.

    Affected by habitat (栖居地) loss and climate change, like many other uniquely Australian animals, koalas are being squeezed into smaller regions. But at present, it is a deadly disease, a somewhat silent killer that causes a further decline in the koala population, that is worrying many scientists about the fate of the koala.

     The killer is Chlamydia, which has caused symptoms in up to 50 percent of the wild koalas, with probably even more infected (感染) but not showing symptoms. It has been particularly severe in Queensland, where nearly all koalas are infected. The disease causes many symptoms including eye infections, which can lead to blindness, making it difficult for them to find their primary food.

     Treating Chlamydia in wild koalas is a challenge. There is no treatment available for it. Only a small percentage of the animals can be treated successfully and returned

to the wild. Besides, there is no national plan in Australia to save the koala;it is up to each region to make management plans for its koala population.

     The good news is that researchers are working to test a vaccine (疫苗) that would help prevent further spread. If all goes well, plans can be carried out to distribute the vaccil1e more widely. But it's impossible to vaccinate all wild koalas.

     Another possibility would be to make vaccine distribution a routi11e part of treatment for the thousands of koalas brought into care centers every year after they are injured by cars or dogs.

     While it is a combination of problems that are affecting the wild koala population, many expects believe this vaccine would be an important step in helping koalas survive longer. It may buy enough time to give researchers a chance to solve some of the other problems facing Australia's koalas.

1. Which isn't considered the main cause of koa1a's population decline?

A. A deadly disease.                  

B. Injuries from cars and dogs.

C. Climate change.                    

D. Habitat loss.

2. The third paragraph mainly tells us          .

A. the serious result Chlamydia has caused to the koala

B. Chlamydia affected the koala only in particular regions

C. the most serious symptom of Chlamydia is eye infections

D. Chla1nydia can seriously affect koala's primary food

3. The underlined word "it" in the fourth paragraph probably refers to      .

A. the koala      

B. Chlamydia      

C. national plan      

D. eye infection

4. We can learn from the text that the vaccine      .

A. would cure the killer Chlamydia quite effectively

B. would only be distributed in koala care centers

C. has already been put into practical use in Australia

D. cannot be distributed to all the infected koalas

5. It can be inferred from the text that           .

A. a national plan for saving koalas will be made soon in Australia

B. koala population is declining only in a few regions

C. researchers need enough time to so1ve the koala problems

D. experts have lost the best chance to save the infected koalas

利用选择性条款的避税形式是针对税法中过于抽象、过于简单的条款，纳税人根据自己的理解，从有利于自身利益的角度去进行筹划。

氨系统管道之间的连接一般不宜采用焊接。