皮皮学，免费搜题
登录
搜题
【简答题】
A．How to make a powerful rocket engine. B．How to ensure the safety of the crew. C．How to choose qualified crewmen for the trip. D．How to enable the spacecraft break free of gravity.
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【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 _______. [ ]
A.
sleep
B.
sleeps
C.
is sleeping
D.
are sleeping
【单选题】The dog pretends _____. Maybe it will bark _____ you. [ ]
A.
to be sleeping, ／
B.
to be sleeping, at
C.
be sleeping, at
D.
be sleeping, ／
【单选题】There are some students ________ in the English lesson.
A.
are sleeping
B.
sleeping
C.
to sleep
参考解析：
知识点：
题目纠错 0
发布
