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【单选题】
2017年4月18日,中央全面深化改革领导小组第三十四次会议强调,要在( )上下功夫,提高督察实效。A.
发现问题、解决问题
B.
深入实际、深入基层
C.
加大力度、力求全面
D.
落实责任、严格处罚
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举一反三
【单选题】Which of the following statements about viral meningitis is incorrect?
A.
As viral meningitis is a self-limiting disease, patients do not need to go to the doctor immediately.
B.
Viral meningitis is the most common type of meningitis.
C.
Many different viruses can cause meningitis, including enteroviruses, measles, and influenza species.
D.
There are not many special pathological changes of viral meningitis.
【简答题】KCL, KVL的相量形式分别是__【 】 和_ 【 】 _ 。
【简答题】阅读下面一段文字，然后回答问题。 六朝金粉、王谢侯府的秦淮，有太多的声色犬马，那不是二胡弦线上开放的花;三秋桂子、十里荷花的钱塘，有太浓的绮丽繁华，那也不是二胡琴弓上跳动的律。纤道、乌篷、台门、廊棚、雨巷、石桥、茶肆、谷场，这才注定了二胡流浪的行脚。本不属于墨客人、显贵官宦，流浪的二胡注定只是在百姓黎民、俗子凡夫中开放的花，流淌的画;流浪的二胡天生就是贩夫走卒、商贾戏子开心时的道具，潦倒间的支撑...
【多选题】How does reverse transcriptase produce DNA from viral RNA?
A.
Certain RNA viruses that infect animal cells carry within the viral particle an RNA-dependent DNA polymerase called reverse transcriptase. On infection, the single-stranded RNA viral genome (~10,000 nucleotides) and the enzyme enter the host cell.
B.
The reverse transcriptase first catalyzes the synthesis of a DNA strand complementary to the viral RNA, then degrades the RNA strand of the viral RNA-DNA hybrid and replaces it with DN
C.
The resulting duplex DNA often becomes incorporated into the genome of the eukaryotic host cell.
D.
These integrated (and dormant) viral genes can be activated and transcribed, and the gene products—viral proteins and the viral RNA genome itself—are packaged as new viruses. The RNA viruses that contain reverse transcriptases are known as retroviruses.
【多选题】Spark中的REPL的特性有
A.
提供交谈式学习环境学习Scala
B.
在终端机软件提示字符下，录入Spark-shell 可启动Spark交谈式环境
C.
可以协助进入Scala编程语言
D.
REPL是英文字 "Read-Eval-Print-Loop" 的简称
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