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【单选题】
下图所示山地为甲、条河流的分水岭,由透水和不透水岩层相间构成。在生态文明建设过程中,该山地被破坏的森林植被得以恢复,随之河流径流量发生了变化,河流径流的年内波动也减缓了。据此完成20-22题。 森林植被遭破坏后,河流径流量年内波动强烈,是由于A.
降水更多转化为地下水
B.
降水更多转化为坡面径流
C.
降水变率增大
D.
河道淤积
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皮皮学刷刷变学霸
举一反三
【单选题】下列说法不正确的是______。
A.
算术编码的码长与该序列的累计分布有关
B.
霍夫曼编码无法对只含2个符号的信源进行压缩
C.
游程编码的效率取决于信源符号的重复率
D.
算术编码可以对只含2个符号的信源序列进行压缩
E.
字典编码通过把信源符号序列映射为位置序号达到压缩编码的目的
【多选题】annual | though | plus | ually | ended Even 1) _______ I had no experience, I was hired and 2) _______ up doing quite well. 3)_________, I even paid Fred and my customers back the $50,000, 4) ___...
A.
though
B.
ended
C.
ually
D.
plus
E.
annual
【单选题】A 70-year-old man saw his physician for a routine health maintenance examination. On physical examination, there were no remarkable findings, but a stool sample was positive for occult blood. A colono...
A.
Adenocarcinoma
B.
Non-Hodgkin lymphoma
C.
Carcinoid tumor
D.
Leiomyosarcoma
E.
Mucinous cystadenoma
F.
Squamous cell carcinoma
G.
Villous adenoma
【简答题】Read the questions and complete the answers according to the text. 5 What did she do after all the money was lost? She worked as _____ _____ and was able to _____ _____ _____ _____ five years later.
【单选题】Five years later she ___ given up her home.
A.
regrets to have
B.
regrets has
C.
regrets have
D.
regrets having
【简答题】不通 过计 算,判断下列符号 进 行霍夫曼 编码 后 对应 哪个符号的 码 字最 长 ?( )
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