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【单选题】
微波实际上是无线电波的一部分。按照波长不同,微波又分为( )、厘米波和分米波。A.
毫米波
B.
微米波
C.
纳米波
D.
米波
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举一反三
【单选题】$ 16,800 is the collector's value of ______.
A.
the One Penny Orange-Red
B.
a correctly printed'1847 stamp
C.
the Two Penny Blue
D.
both A and C
【单选题】The collectors' have paid $16,800 for______.
A.
the One penny Orange-Red
B.
a correctly printed 1847 stamp
C.
the Two penny Blue
D.
both A and C
【单选题】$ 16 800 is the collector's value of______.
A.
the One-Penny Orange-Read
B.
a correctly printed 1847 stamp
C.
the Two-Penny Blue
D.
both A and C
【单选题】$ 16,800 is the collector's value of ______.
A.
the One Penny Orange-Red
B.
a correctly printed'1847 stamp
C.
the Two Penny Blue
D.
both A and C
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