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【简答题】
在 RFID 系统中,为防止各种干扰和电子标签之间数据的碰撞,经常采用 ( ) 和 ( ) 来分别解决这两个问题。
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举一反三
【单选题】The ________ cause of his illness was excessive drinking, but the real cause was his deep grief at his wife's death. [ ]
A.
apparent
B.
obvious
C.
clear
D.
distinct
【单选题】The medicine ______ his pain but did not cure his illness.
A.
activated
B.
alleviated
C.
mediated
D.
deteriorated
【单选题】As there is no indication the danger of his illness has passed, his family have to get ready for ______ the worst.
A.
that
B.
which
C.
because
D.
if
【单选题】From this passage, it can be known that Hawking ______.
A.
is unhappy because of his illness
B.
is always complaining about his illness
C.
is fearless in face of his illness
D.
is interested in science because of his illness
【简答题】We are certain that he will get over his illness.
【单选题】The professor persisted in attending the conference ______ his illness and the heavy storm.
A.
given
B.
despite
C.
in spite
D.
although
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