女性，30岁，因右肾结石行ESWL治疗3天后排出结石，两周复查右肾结石已排净，结石成分分析为磷酸盐结石，预防磷酸盐结石的方法是（）

成本低的工程和构配件

使用费用较高的工程和构配件

体积与重量大的工程和构件

结构复杂的工程和构配件

将患者妻子叫到门外，告知患者妻子详细诊断并讨论后续方案

避免对患者造成刺激，先不告知患者和妻子

请患者妻子陪在患者身边，把诊断结果告诉俩人，建议尽快接受治疗

将诊断证明书递给患者，请其自行阅读，口头告知治疗策略

发热

呕吐

疼痛

血尿

便秘

经验基准的形成具有理论支撑

经验基准的标准在所有行业中均适用

经验基准的标准只是在某一时间段内成立

经验基准的标准不会随着经济环境的改变而变动

财务信息的相关性

财务信息的系统性

财务信息的准确性

财务信息的完整性

财务信息的及时性

左侧卧位

抬高腰桥左侧卧位

俯卧位

折刀位

平卧位

正确

错误

圆形

卵圆形

桑椹形

鹿角形

以上都可

磷酸三钠

磷酸三钾

磷酸氢二钠

磷酸二氢钠

As you can imagine, organic agricultural practices are quite distinct from those of "conventional" fanning.

Organic farmers:

feed soil and build soil matter with natural fertilizer to grow their crops use insect predators, mating disruption, traps and barriers to protect crops from pests and disease make use of crop rotation, mechanical tillage and hand-weeding, as well as cover crops, mulches, flame weeding and other management methods to control weed growth.As a last resort, organic farmers may apply certain botanical or other non-synthetic pesticides. Conventional farmers:,

apply chemical fertilizers to the soil to grow their crops spray with insecticides to protect crops from pests and disease use synthetic herbicides to control weed growth.

Look for the word "organic" on vegetables or pieces of fruit, or on the sign above the organic produce display. The word "organic" may also appear on packages of meat, cartons of milk or eggs, cheese and other single-ingredient foods. Foods labeled "100 percent organic" must contain only organic ingredients. Products containing at least 70 percent organic content can be labeled "made with organic ingredients". Those foods labeled simply "organic" must have at least 95 percent organic ingredients, by weight or fluid volume, excluding water and salt. Anyone who knowingly sells or labels a product "organic" that is not produced and handled in accordance with these regulations can face a civil penalty of up to $10,000.

Foods grown and processed according to the federal standards will in most cases bear the seal "USDA Organic". As its use is voluntary, companies may choose not to display the seal.

Why Should I Care if a Food is Organic According to the USDA, organic food production allows farmers to lower input costs, decrease reliance on nonrenewable resources, capture high-value markets and premium prices, and boost farm income. Organic agriculture also has many important environmental, benefits:

It promotes sustainability by establishing an ecological balance to pr soil fertility or pest problems. In the long run, organic farms tend to conserve energy and protect the environment by maintaining ecological harmony.

It enhances biodiversity, or the presence of multiple plant and animal species. Having a highly diverse genetic pool becomes useful in the future when beneficial characteristics can be tapped.

Because organic agriculture utilizes practices such as crop rotations, inter-cropping, symbiotic associations, cover crops and minimum tillage, the length of time that the soil is exposed to erosive forces is decreased, which minimizes nutrient losses and boosts soil productivity. By not using synthetic fertilizers and pesticides, organic agriculture-reduces pollution of groundwater.

Organic agriculture helps to minimize the greenhouse effect and global warming through its ability to keep carbon in the soil.

Prices tend to be higher for organic titan conventional products. As stated on the Web site of the Food and Agriculture Organization (FAO) of the United Nations (UN), certified organic products are generally, more expensive than their conventional counterparts because:

The organic food supply is limited as compared to demand. Production costs for organic foods are typically higher because of greater labor input and because farmers don’t produce enough of a single product to lower the overall cost.

Post-harvest handling of relatively small quantities of organic foods results in higher costs because organic and conventional 0roduce must be separated for processing and transportation.

Marketing and the distribution chain for organic products are relatively inefficient, and costs are higher because of relatively small volumes.

The FAO also notes that as the demand for organic food and products increases, technological innovations and economies of scale should reduce costs of production, processing, distribution and marketing for organic produce.

Organic and conventional food must meet the same quality and safety standards. Organic food differs from conventionally produced food simply in the way it is grown, handled, and processed. There is no scientific evidence to suggest that it is more nutritious or safer than conventional food. A recently published report indicates that organic food is less likely to contain pesticide residues than conventional food. Yet, according to the National Research Council, the traces of pesticides left on conventionally grown products are unlikely to cause an increased cancer risk. Also, if fruits and vegetables are properly washed, most of the chemicals can be removed. As for taste, that’s up to you to decide what you like best. In general, people tend to find that the fresher a food is, the better it tastes, regardless of how it was produced.

尿失禁

排尿困难

尿频尿急

镜下血尿

活动后镜下血尿

排尿困难

尿频、尿急

尿失禁

无痛性血尿

低熔合金铸造包埋材料

中熔合金铸造包埋材料

高熔合金铸造包埋材料

铸钛包埋材料 E．以上均不是

0-1％～0.2％

0.6％

0.8％～1.0％

1.6％

2％