How much for one melon?[ ]
A. It's 5 yuan.
B. It's expensive.
C. It's 5.
答案：A
大约于公元前8世纪始，古希腊开始出现“城市国家”或“城邦”，在各地先后建立了200多个，其中最为著名的是( )。
A．斯巴达和希腊
B．斯巴达和雅典
C．雅典和马其顿
D．雅典和希腊
Many of the activities performed during the preliminary investigation are still being conducted in (1)， but in much greater depth than before. During this phase, the analyst must become fully aware of the (2) and must develop enough knowledge about the (3) and the existing systems to enable an effective solution to be proposed and implemented. Besides the (4) for process and data of current system, the deliverable from this phase also includes the (5) fortheproposedsystem.
空白（3）处应选择（）
A.hardware environment
B.testing environment
C.software environment
D.business environment
