一条复制过的染色体,其着丝点数、染色单体数和DNA数依次为() A.2,2,4 B.

题型:单项选择题

问题:

一条复制过的染色体,其着丝点数、染色单体数和DNA数依次为()

A.2,2,4

B.1,2,2

C.1,4,4

D.2,2,2

考点:高中生物细胞增殖细胞增殖题库
题型:单项选择题

Referring to his notes during that important test led to ________. [ ]

A. having punished the boy

B. punishing the boy

C. the boy being punished

D. the boy to be punished

题型:单项选择题
阅读下面短文,从所给单词中选出适当单词,并用其正确的语言形式填在标有题号的空白处,使语意通顺完整。(每空一词,每个单词只能使用一次)
child    time     in     good     ready     begin
pass    quickly   themselves   for     if     hard
      Each year, thousands of Chinese middle school students go to study in foreign countries such as the US, the UK, Australia and Japan.
"Chinese   6  hope very much to go abroad to get a wider view (视野) of the world," said Li Mingshan, a Chinese writer who has lived   7   America for many years. In a talk Li told more than 300 parents and their children that life in foreign countries can be   8  for young people. "They have to meet a culture shock and language problems.”
However, these are not the most difficult things. To most children, looking after   9  when studying alone in a foreign country is a big challenge (挑战).
Zhao Baohua, a 16-year-old student   10  to study in a high school in Australia last October. To his surprise, his teachers there hardly pushed students to study. And usually there wasn't homework. "With these education systems, we have more free   11  and more space for thinking," said Zhao. "But   12  you don't know how to plan your time and money, you will not have an easy time." Some of his friends spent their whole year's money in the first two months of the term, and they didn't   13  their exams.
"Studying abroad at a young age can help students learn foreign languages   14 , but students and parents should know about the challenges," Li said. "If you want to study abroad, try to talk to someone with experience in foreign countries. Make sure that you are   15  for it. "
题型:单项选择题

公民的人格权中的核心权利是[ ]

A.生命健康权  

B.人格尊严权    

C.姓名权    

D.自由权

题型:单项选择题

诉讼时效期间从权利人知道或者应当知道其权利受到侵害之日起开始计算。若权利从被侵害之日起超过( )年,则人民法院不予保护。

A.20
B.2
C.10
D.5

题型:单项选择题

简述城市园林绿地的类型及作用。

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