未知题型
Because the twins are identical, it is impossible to tell ( ).which one from the otherB: one from the otherC: one from which otherD: one and the other
B
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? （）.
