春季马路赛跑是长沙市的传统体育赛事，请问今年是第多少届？

建立平面直角坐标系，作出函数y=-2x+3的图象，利用图象解答下列问题：

(1)当x取哪些值时，y>0；

(2)当x取哪些值时，y<0；

(3)当x取哪些值时，-3≤y≤7。

沉淀反应中，抗原与抗体的结合价取决于抗原的分子量，一般说来，抗原的分子量与结合价的关系是（）

A.抗原分子量越大，结合价越小

B.抗原分子量越大，结合价越大

C.两者没有关系

D.两者呈函数关系

E.IgM型抗体结合价为二价

男性，57岁。近1个月来上腹部疼痛，低热，体重减轻，2周前尿色变深，继而巩膜、皮肤进行性黄染。查体：肝肋下4cm，边缘钝，右上腹可及6cm×4cm大小的梨形肿块。

诊断梗阻性黄疸最有价值的指标是（）

A.SGPT正常

B.HBsAg阴性

C.尿胆源阴性

D.B超示肝内外胆管扩张

E.AFP230U/L

甲与乙共谋次日共同杀丙，但次日甲因腹泻未能前往犯罪地点，乙独自一人杀死丙，关于本案，下列哪些说法是不正确的？（）

A.甲构成故意杀人罪的共犯

B.甲与乙不构成故意杀人罪的共犯

C.甲承担故意杀人预备的刑事责任，乙承担故意杀人既遂的刑事责任

D.甲与乙均承担故意杀人既遂的刑事责任

Developing reliable software on time and within (1) represents a difficult endeavor for many organizations.
Usually business solutions have three main aspects:people, (2) , and technology.The main reason for failing software projects has little to do with technology and tools, and much to do with lack of process (3) . Experience has shown that introducing new technology and tools in an immature or undisciplined environment is likely to increase the chaos. CASE tools are not enough. "A fool with a tool is still a fool!"
Structured method was the first wave of the software industry. This was the beginning of transforming software development from a " (4) industry" to mass production.Software process movement if the second wave in the software industry.The process maturity movement prepares the way for the third wave of the software industry: "software industrialization". Software development will become like an assembly and manufacturing process. A critical enabling factor is a disciplined software engineering process with predictable quality, (5) and functionality.

A. forecast B. preparationC. budget D. economy