不能属于城市内客运交通的是:
A.自行车交通
B.步行交通
C.轻轨
D.环线车
参考答案:D
解析:城市内客运交通包括:步行交通、 自行车交通、公共交通、其他客运机动交通。
(71) analysis emphasizes the drawing of pictorial system models to document and validate both existing and/or proposed systems. Ultimately, the system models become the (72) for designing and constructing an improved system. (73) is such a technique. The emphasis in this technique is process-centered. Systems analysts draw a series of process models called (74) 、 (75) is another such technique that integrates data and process concerns into constructs called objects.
(74)应选()。
A.PERT
B.DFD
C.ERD
D.UML
下列对出版物市场的表述,不正确的是( )。
A.从广义上讲,出版物市场是指出版物商品交换关系的总和
B.从狭义上讲,出版物市场是指具有一定的场地和设施的出版物交易场所
C.出版物供求关系是构成出版物市场的基本矛盾
D.只要具备生产者、批发者和零售者三个基本条件就可以形成出版物市场