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【单选题】
嘌呤碱基的鉴别实验,生成的沉淀为哪种颜色,变为哪种颜 色A.
白，黑
B.
白，无
C.
白，红棕
D.
红棕，白
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反馈参考答案：
举一反三
【简答题】在一个 TCP连接,当它的拥塞窗口大小为个分组大小时超时。假设该线路的往返时间RTT是固定的即为3s。不考虑其它开销,即分组不丢失,该TCP连接在超时后处于慢启动阶段的时间有 秒?
【简答题】①It’s “laughably absurd” on one blog and a “magical revolution” on another．Bloggers are talking about the same device—the Apple iPad, which hit store shelves last week． ②Tech-heads hate the iPad becau...
【单选题】Today the public is much concerned about the way ( ) .
A.
nature is being ruined
B.
which nature is mined
C.
on which to ruin nature
D.
of nature to be mined
【简答题】Today the public is much concerned about the way ________. A) nature is being ruined B) which nature is ruined C) on which to ruin nature D) of nature to be ruined
【简答题】听填信息。 Father: (1) __________ loudly at a funny story in the newspaper Mother and aunt: talking about their new (2) __________ Grandmother: talking to her friend on the phone Grandfather: watching a (3...
【单选题】Today the public is much concerned about the way _______ .
A.
nature is being ruined
B.
which nature is ruined
C.
on which to ruin nature
D.
of nature to be ruined
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