填空题

Air Force One is a flying fortress as secure and technologically equipped as the Oval Office.

【参考答案】

Y
<上一题 目录 下一题>
热门 试题

问答题
高校扩招给学生、社会带来的好处。 2．高校扩操纵 高校带来的压力和挑战。 3．如何解决这些问题？What Does the Expansion of College Enrollment Bring？
单项选择题
The passage indicates that, in comparision to radio waves, gamma waves ______.
A．produce louder sound
B．are less magnetic
C．do not form in the Sun's center
D．are not long
相关试题