阅读下列材料，回答下面的题目（答案精确到小数点后1位）： 浙江、福建、广东三省单位数与个体经营户数 https://assets.asklib.com/images/image2/2018050814203755591.jpg 福建省第三产业的产业活动单位数量占该省产业活动单位数量的比重约为（）。

A . 1位 B . 2位 C . 3位 D . 整数

A . 1.5 B . 3.0 C . 4.6 D . 5.1

A . 福建省的第二、第三产业在上述三省中发展最不均衡 B . 上述三省中从事第三产业的个体经营户总人数均超过从事该产业的产业活动单位的职工总数 C . 广东省在上述三省中拥有数量最为庞大的机关、事业单位 D . 由产业活动单位数量可以推知，浙江省的第二、第三产业经济总量低于广东省的7.44％

A . 7.2万个 B . 5.9万个 C . 3.2万个 D . 1.9万个

A . 正确 B . 错误

A . 2 B . 3 C . 4 D . 5

A . 1.0cm B . 0.5cm C . 0.05cm D . 0.01cm

第一篇 Volunteers are being recruited(征募) to eat raw potatoes in the first human trials of a vaccine grown in genetically engineered vegetables. Researchers in Texas hope that people who eat the potatoes will be protected against common gut(肠，肠子) infections. They believe this technique could prove to be a cost-effective way of growing vaccines in developing countries where such diseases are still killers. Other researchers previously succeeded in using similar techniques to produce potential vaccines Now Hugh Mason and his colleagues at Texas A & M University(得克萨斯农业及机械大学) their plant vaccines on mice and plan to recruit 15 volunteers for a human trial. The team first tested the technique in tobacco plants. They took a strain of Escherichia coli(大肠杆菌) bacteria that causes food poisoning, and identified the part of the poison which binds to its victims gut cells. They then used a modified plant bacterium called Agrobacterium tumefasciens to transfer the segment of DNA which manufactures the binding protein into the tobacco plant. Under normal circumstances, these bacteria transfer packets of DNA into plant cells to force the plant to manufacture the nutrients they need. But in the modified bacteria, the DNA package includes the gene to pro- duce the binding protein. Once the foreign DNA segment was incorporated(结合，合并) into the tobacco's own DNA, the bacteria were killed off with antibiotics. Mason's team then grew these modified tobacco plants and found that they produced the E. coli binding protein. Proof of success came when the tobacco leaves were mashed up(捣碎) and squirted into the stomachs of mice. Mason says that within days the mice started producing specific antibodies to the E. coli poison, but suffered no ill effects from digesting the binding protein. Mason then produced genetically engineered potatoes and fed these to mice, with similar results. Mason's team have used plants to produce vaccines against a number of other infectious agents. For example, they have made a vaccine using a protein from the shell of the Norwalk virus, which causes diarrhoea(腹泻) in children. A third vaccine has also been produced in tobacco using a surface protein from the hepatitis B virus. But Mason says that so far they have only been able to produce small amounts of it in potatoes. Although a vaccine already exists against hepatitis B, a cheaper plant version could make mass immunisation(群众性免疫) possible. One problem with growing potatoes to produce vaccines is that cooking tends to destroy the protein component of the vaccine, so they must be eaten raw. Mason thinks that bananas may be a better option. "One banana could potentially produce a whole host of different vaccines," says Mason. The purpose of this text is______。 A. to prove that doctors don't like vegetables B. to amuse the reader by telling some funny things C. to describe how vegetables can grow vaccines for their own use D. to tell the reader about a cheaper way of growing vaccines

A．立即输入0．45％氯化钠溶液+胶体溶液 B． 立即输入0．9％氯化钠溶液+胶体溶液 C． 血糖降至16．7mmol／L时，可输入5％葡萄糖溶液并加入胰岛素 D． 参考每小时尿量补充钾盐 E． 以每小时每千克体重0．1U的速率静脉滴注胰岛素

A．1 B．2 C．3 D．4

A．清创，手法复位，垂直悬吊皮肤牵引 B． 清创，手法复位，石膏固定 C． 清创，手法复位，夹板固定 D． 清创，切开复位，髓内钉内固定 E． 清创，切开复位，外固定架固定

A．20．5 B． 21．5 C． 22．5 D． 23．5

A．苏东坡留给后人的主要形象：他虽一生并未退隐，也从未真正“归田”，但他所表现出来的退隐的欲望比任何前人要更深刻更沉重。 B．苏轼诗文中所表达出来的“退隐”心绪，不是对政治的退避，也不是对政治杀戮的恐惧哀伤，而是一种对社会的退避。 C．朱熹因为感受到苏轼这一套对当时社会秩序具有潜在的破坏性，所以最不满意苏轼。 D．苏轼在写下《临江仙》这首词后居然睡大觉，根本没去“江海寄余生”。主要是因为他已在佛学禅宗中寻得一些安慰和解脱。