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【单选题】
流量控制是一种机制,它通过( )来解决发送器和接收器速度的不一致A.
增大接收器接收速度
B.
降低发送器发送速度
C.
接收器向发送器反馈信息
D.
增加网络缓冲能力
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反馈参考答案：
举一反三
【单选题】Why can it be said that techno music will always be around?
A.
it won’t, it will go out of style
B.
it is beautiful and meaningful
C.
the lyrics are poetic
D.
it’s dance music, and people will always love to dance, so they’ll need techno music
【单选题】Today's expression, ' Knowledge is _____ ,' is widely misunderstood. The more you know, the more ____ you will be.
A.
power, successful
B.
power, success
C.
powerful, successful
D.
powerful, success
【单选题】To learn more information about the exhibition, yo can ___________.
A.
send an email
B.
make a phone call
C.
pay a visit to the exhibition
D.
visit the organizer ’ s website
【单选题】He’s still conscious but he’s very badly injured.
A.
responsive
B.
aware
C.
unconscious
D.
awake
【单选题】It seems that the more lovely an animal is , the more it _____our health. As the saying goes, “if you want to be loved, get a dog.”
A.
harms
B.
troubles
C.
benefits
D.
treats
【单选题】Videomaker ProVid announced it______ to buy electronic retailer Techno City for $1 billion.
A.
offer
B.
offers
C.
offered
D.
offering
【简答题】动词填空 1. There ______ ( be) six singers in the band last night. 2. Car is more and more popular, you'd better _____(learn) to drive. 3. Jordan ________ (be) born in 1975. 4. Fred _______ (visit) his co...
【单选题】在含有Fe2+和Fe3+的溶液中，加入下述( )溶液，Fe2+／Fe2+电对的电位将降低(不考虑离子强度影响)。
A.
邻二氮菲
B.
HCl
C.
H3PO4
D.
H2SO4
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