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【单选题】
家用缝纫机采用的是( )A.
曲柄摇杆
B.
双摇杆
C.
双曲柄
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举一反三
【简答题】OTC ( over the counter )
【简答题】Professional treatment from your dentist works better than over-the-counter products in ______.
【简答题】over the counter
【单选题】Which of the following securities markets is organized as an over-the-counter market?______.
A.
The New York Stock Exchange
B.
The NASDAQ market for stocks
C.
The US Government bond market
D.
Both B and C
【单选题】An advantage of a ring counter over a Johnson counter is that the ring counter ( ).
A.
has more possible states for a given number of flip-flops
B.
is cleared after each cycle
C.
allows only one bit to change at a time
D.
is self-decoding
【简答题】over-the-counter
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【简答题】Professional treatment from your dentist works better than over-the-counter products in ______.
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