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【单选题】
下列关于经差、纬差的说法中,正确的是:A.
船舶由东半球航行至西半球，经差不一定是东
B.
船舶由北半球航行至南半球，纬差不一定是南
C.
船舶由南半球航行至北半球，纬差不一定是北
D.
A 、B、C都错
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举一反三
【单选题】After he arrived and checked in at the hotel, he filled out a registration___________
A.
card
B.
form
C.
note
【简答题】Roy wanted to join a sports club. He filled out this application (申请) form. Now please read this form carefully and then answer the questions. Last name： Williams First name： Roy Address： 140 Jefferso...
【简答题】A．Because he filled out the wrong form. B．Because the officer laughed at him. C．Because he didn't know what form. to get. D．Because he didn't realize the form. was in Spanish.
【单选题】He has _______the cup ______water.
A.
fills ; with
B.
filled; of
C.
filled; with
D.
fill; of
【单选题】His eyes ______ tears when he listened to the sad story.
A.
are filled with
B.
are filled of
C.
were filled with
D.
were filled of
【简答题】在同一种媒体中传输信号时,如果信道长度固定,为了增加传输容量,不可能通过减少 ___________来解决,而只能通过增加_____ 来实现。
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