1、请根据本周内容回答下面问题： 1 8255A是并行接口芯片，如果想要借助该芯片控制8位数码管（8字型的LED灯），你在使用的时候，应该将其连接在8255A的什么管脚上？5分 2 如果想让数码管显示3，请根据你的连接，写出控制程序（注意包括初始化和控制） （设LED数码管为共阴极连接，端口地址为，A口：200H，B口：201H，C口：202H，控制口：203H）10分

A . A.190 B . 300 C . 49 D . 无法计算

A . A.在建工程 B . 固定资产净值 C . 存货 D . 待处理固定资产净损失

A . 西格玛水平越高，过程满足顾客要求的能力就越强 B . 西格玛水平越低，过程出现缺陷的可能性就越小 C . 无偏移情况下的西格玛水平2。只与顾客要求的规格限有关，与目标值无关 D . 无偏移情况下的西格玛水平大于有偏移情况下的西格玛水平

A . 2506.25 B . 2508.33 C . 2510.42 D . 2528.33

A . A.应当由王某居住地司法行政机关执行，对其严格管理监督 B . 应当由王某居住地公安机关执行，对其严格管理监督 C . 暂予监外执行的情形消失后，如果刑期已满，王某不必再被收监 D . 监外执行的期间应当计人刑期

A . 183217.4亿元 B . 188692亿元 C . 168246亿元 D . 178469亿元

A . 145.6 B . 155.6 C . 160.6 D . 165.6

A . A.5970 B . 7135 C . 1165 D . 无法计算

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．纯风险 B．非单纯风险 C．投资风险 D．投机风险

A．安排课前作业，课堂高效利用课堂作业，注意尊重学生主体性，有效地开发课程资源，尤其重视对学生学习资源的开发和利用 B．善于利用课堂教学拓展延伸教学内容，对联教学深化了学生热爱祖国语文的感情．在教学中让学生体会了中华文化的博大精深、源远流长 C．教师和学生合作诵读，不仅起到了示范带头作用，也体现了教师在教学实践中践行师生课堂同等的教学观念 D．写作要求缺失，应在写作前强调写作要求，以利于学生写作的规范化，提高写作水平

A．I B．II C．III D．无法确定

A．所学的科学管理知识 B．高度的工作热情 C．学以致用的工作方法 D．管理者的基本素质

A．频数 B．变量 C．变量值 D．分组标志

A．企业主要负责人 B．项目负责人 C．专职安全生产管理人员 D．以上都是

A．偶数能被2整除 B．《纯粹理性批判》的作者是康德 C．1879年爱因斯坦出生在德国乌尔姆市 D．没有一个单身的男子是结婚的

A．G市 B．A市 C．F市 D．B市