【简答题】若上传文件的名字为userfile,则下列选项中可以用于判断上传文件类型的是( )。A. $_FILES['userfile']['name'] B. $_FILES['userfile']['type'] C. $_FILES['userfile']['tmp_name'] D. $_FILES['userfile']['size']
【单选题】听力原文:M: Hello, this is David. I have an appointment with Mr. Black for ten o'clock this morning, but I'm afraid I'll have to be about fifteen minutes late. W: That's all right He doesn't have another ...