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【简答题】
生物的遗传密码子共 个,其中起始密码子 个,终止密码子 个,负责编码20种氨基酸的密码子 个。
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【简答题】在下面两题中任选其一作文。 (一)请以“每朵花都有自己的芳香”为标题，写一篇文章。 (二)留在沙滩上的足迹是清晰的；留在高山上的足迹是坚实的；留在青春岁月里的足迹是令人回味的；留在历史长河中的足迹是永恒的…… 请以“足迹”为话题，写一篇文章。 要求：①选择(一)，文体不限；选择(二)，立意自定，题目自拟，文体不限。 ②不少于600字。(如果写诗歌，不少于20行) ③字迹工整，书写清楚。(达到此项要...
【多选题】在Python中,下列哪些条件表达式中第2个条件不执行?
A.
5>3 and 1>5
B.
2>6 and 8<5
C.
3>8 or 6>5
D.
8>3 or 1>7
【单选题】关于血液标本的采集，不正确的是
A.
标本可反映体内各组织、器官整体的代谢状况。
B.
标本采集人是医技人员
C.
标本类型有全血、血浆和血清
D.
加抗凝剂的全血，经离心分离出上清液部分即为血浆。
E.
血浆比血清多出纤维蛋白原，凝血因子及抗凝剂，其余成份大致相同。
【单选题】Grandma, what a big and fickle metaphor you can be! For children, the name translates as 'the magnificent one with presents in her suitcase who thinks I'm a genius if I put my shoes on the right feet,...
A.
It makes people think of kindness, frailty, old fashion, etc.
B.
The word has different associations for different people.
C.
The word brings a sense of security to children.
D.
The word means an impediment to real research.
【单选题】Grandma, what a big and. fickle metaphor you can be! For children, the name translates as 'the magnificent one with presents in her suitcase who thinks I'm a genius if I put my shoes on the right feet...
A.
It makes people think of kindness, frailty, old fashion, etc.
B.
The word has different associations for different people.
C.
The word brings a sense of security to children.
D.
The word means an impediment to real research.
【单选题】We can infer from the metaphor in the last paragraph that
A.
dead languages are similar to fossils in biological sense.
B.
documentation is not enough for us to understand dead languages.
C.
fossil records give a complete picture of ancient lives.
D.
dead languages can remain alive if they are documented properly.
【简答题】单位工程施工组织设计的内容包括工程概况、( )、( )、施工准备工作及各项资源需要量计划、( )、主要技术经济指标。
【单选题】Metaphor can be found in all of the following sentences EXCEPT__________.
A.
Kisses are the flowers of love in bloom.
B.
His relation with his wife has not been fortunate.
C.
He pleaded for her forgiveness but Janet’s heart was cold iron.
D.
Let your eyes drink up that milkshake sky.
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