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【单选题】
IEEE 802.15.4的MAC层采用()信道接入
A.
ALOHA
B.
CSMA-CD
C.
CSMA-CA
D.
CDMA
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参考解析：
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举一反三
【单选题】Dina, for months to find a job as a waitress, finally took a position at a local advertising agency.
A.
struggling
B.
struggled
C.
having struggled
D.
to struggle
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【单选题】Yes, new technology has been eating jobs forever, and always will. But there's been acceleration . As Davidson notes, “In the 10 years ending in 2009, U.S. factories shed workers so fast that they era...
A.
gains of technology have been erased
B.
job opportunities are disappearing at a high speed
C.
factories are making much less money than before
D.
new jobs and services have been offered
查看完整题目与答案
【判断题】在分光器下测试光功率正常,但用户端测试无光,可能原因为入户光缆断。
A.
正确
B.
错误
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【简答题】A．University education. B．Planning for post-graduate studies. C．Job hunting. D．Advertising jobs.
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【单选题】KMnO4法测定Fe2+时，采用的酸性介质是（ ）
A.
HCl
B.
H3PO4
C.
HNO3
D.
H2SO4
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【单选题】Here is _________  for you _________  a waiter. [     ]
A.
works; for
B.
a work; as
C.
job; of
D.
a job; as
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【简答题】Have you ever been afraid to talk back when you were treated ____1 ___? Have you ever bought something just because the salesman talked you into it? Are you afraid to ask someone for a date. Many peop...
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【单选题】Sound Effects Snorers(打鼾的人) have always been made jokes. In cartoons，their nasal roar 1ifts the roof off houses. In situation comedies，there's the wife who rolls her eves at her snoring bedmate. But i...
A.
the causes of snoring problems
B.
the treatments of snoring problems
C.
the risks of snoring problems
D.
the hazards and the treatments of snoring problems
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【单选题】When Nick says, "That's right, there's always next time," he means
A.
he played badly this year, but he'll be better next year.
B.
his team didn't win this time, but they might next time.
C.
his relationship with Talia has been bad lately, but it'll be better soon.
查看完整题目与答案
【单选题】Although you are new here, he is ______ you for the job.
A.
admitting
B.
absorbing
C.
acknowledging
D.
considering
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相关题目：
【单选题】Dina, for months to find a job as a waitress, finally took a position at a local advertising agency.
A.
struggling
B.
struggled
C.
having struggled
D.
to struggle
查看完整题目与答案
【单选题】Yes, new technology has been eating jobs forever, and always will. But there's been acceleration . As Davidson notes, “In the 10 years ending in 2009, U.S. factories shed workers so fast that they era...
A.
gains of technology have been erased
B.
job opportunities are disappearing at a high speed
C.
factories are making much less money than before
D.
new jobs and services have been offered
查看完整题目与答案
【判断题】在分光器下测试光功率正常,但用户端测试无光,可能原因为入户光缆断。
A.
正确
B.
错误
查看完整题目与答案
【简答题】A．University education. B．Planning for post-graduate studies. C．Job hunting. D．Advertising jobs.
查看完整题目与答案
【单选题】KMnO4法测定Fe2+时，采用的酸性介质是（ ）
A.
HCl
B.
H3PO4
C.
HNO3
D.
H2SO4
查看完整题目与答案
【单选题】Here is _________  for you _________  a waiter. [     ]
A.
works; for
B.
a work; as
C.
job; of
D.
a job; as
查看完整题目与答案
【简答题】Have you ever been afraid to talk back when you were treated ____1 ___? Have you ever bought something just because the salesman talked you into it? Are you afraid to ask someone for a date. Many peop...
查看完整题目与答案
【单选题】Sound Effects Snorers(打鼾的人) have always been made jokes. In cartoons，their nasal roar 1ifts the roof off houses. In situation comedies，there's the wife who rolls her eves at her snoring bedmate. But i...
A.
the causes of snoring problems
B.
the treatments of snoring problems
C.
the risks of snoring problems
D.
the hazards and the treatments of snoring problems
查看完整题目与答案
【单选题】When Nick says, "That's right, there's always next time," he means
A.
he played badly this year, but he'll be better next year.
B.
his team didn't win this time, but they might next time.
C.
his relationship with Talia has been bad lately, but it'll be better soon.
查看完整题目与答案
【单选题】Although you are new here, he is ______ you for the job.
A.
admitting
B.
absorbing
C.
acknowledging
D.
considering
查看完整题目与答案