【简答题】response 对象的 方法用来定义服务器发送给客户端的 MIME 类型。
【单选题】Please be quiet, my grandmother _______. [ ]
【单选题】Don't talk. Your brother _______. [ ]
【单选题】Jenny was afraid _____ at night. [ ]
【单选题】The dog pretends _____. Maybe it will bark _____ you. [ ]
【单选题】He _____ when the UFO arrived.
【单选题】There are some students ________ in the English lesson.