单项选择题
下列不属于按微机使用领域分类的是()。
单项选择题 不属于优化大师的主要功能的是()。
单项选择题 -Excuse me, sir. Where is the post office? （）.
未知题型 -Excuse me, is this seat free? -( ).No, you can't sit hereB: Sorry, it is takenC: Yes, it is seated by a boyD: Yes, but I don't know
