听力原文: Experts say some fanning activities are seriously damaging Earth's environment. Bad farming methods can damage soil, forests and water supplies. They also have caused some plants and animals to disappear.
Two groups now say that bad farming methods are threatening the ability of farmers to produce enough food to feed the world population in the future.
The groups used satellite images, maps and modern equipment to study the effect of agriculture on the environment.
The study found that the destruction of soil is widespread, Important organic nutrients are being removed from farmland.
Agriculture uses 70 percent of the freshwater in the world each year. The study found that many farmers are wasting water supplies. In addition, chemicals designed to protect crops may pollute waterways.
The report also says as much as 30 percent of the world's forests have been cut down so the land could be used for agriculture. This has led to a severe loss of wildlife and their environments.
(30)
A.Soil.
B.Human population.
C.Forest.
D.Water.
第2题
A.全乳腺切除术
B.腋淋巴结清扫术
C.放射治疗
D.化学治疗
E.内分泌治疗
F.靶向治疗
第3题
A.0
B.<10%
C.10%~15%
D.15%~20%
E.20%~25%
F.25%~30%G.30%~35%
第4题
A.放射治疗部位需要包括右侧全乳腺
B.可采用部分乳腺放射治疗
C.放射治疗部位需要包括右侧锁骨上淋巴引流区
D.肿瘤原发部位在内象限,内乳淋巴引流区需要放射治疗
E.右侧内乳淋巴引流区是否放射治疗尚有争议
F.腋窝仅做前哨淋巴结活检,需要做腋窝放射治疗
第5题
A.钼靶X线片
B. 超声
C. CT
D. MRI
E. 红外线F . 光超声
第6题
A.钼靶X线片
B. 超声造影
C. 增强CT
D. 增强MRI
E. 乳管镜F . 穿刺细胞学检查
第7题
A.Ⅰb2
B. Ⅱa
C. Ⅱb
D. Ⅲa
E. Ⅲb
第8题
A.乳腺炎性占位
B. 乳腺增生结节
C. 乳腺皮下囊肿
D. 乳腺囊肿
E. 乳腺纤维腺瘤F . 导管内乳头状瘤
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