读非洲气候类型空白图，回答下列问题：

（1）气候类型A是________气候

（2）气候类型B是________气候

（3）气候类型D是________气候

（4）非洲“赤道雪峰”是指________山，为什么会出现山顶终年积雪呢？______。

（5）刚果盆地是属于_______气候区。

（6）非洲气候类型中分布范围最广的是气候是_______。其气候特点是___________。

（7）由图可以看出非洲气候类型的分布规律是：以为________中心，对称分布。

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. Besidesthe(4)for process and data of current system,the deliverable from this phase also includes the(5)for the proposed system.

空白（3）为（）

A.hardware environment

B.testing environment

C.software environment

D.business environment