【名词&注释】
减数分裂(meiosis)、邓小平、母细胞(mother cell)、《中华人民共和国香港特别行政区基本法》、《联合声明》、薄壁组织(parenchyma)、次生分生组织(secondary meristem)、初生壁(primary wall)、厚角组织(collenchyma)、中柱鞘(pericycle)
[单选题]薄壁组织、表皮、厚角组织(collenchyma)都具有潜在的分生能力，也就是说它们都有能脱分化形成次生分生组织(secondary meristem)。( )
A. 正确
B. 错误
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举一反三：
[单选题]“几个小时前我还是皇家警察，但现在我已是一名堂堂正正的香港警察了。”该警察说这句话的背景是
A. 邓小平提出“一国两制”
B. 中英签署关于香港问题的《联合声明》
C. 《中华人民共和国香港特别行政区基本法》的颁布
D. 中华人民共和国香港特别行政区成立
[单选题]DModcm inventions have speeded up people’s lives amazingly. Motor-cars cover a bundred miles in little more than an hour. Aireraft cross the world a day, while computers operate at lightning speed. Indeed, this love of speed seems never-ending. Every ycar motor-cars are produced which go even faster each new computer boasts（吹嘘）of saving preeious seconds in handling tasks.
A. All this saves timc, but at a prick.When we lose or gain half a day in speeding aeross the world in an airplane, our bodies tell us so. We get the uncomfoerable feeling known as jet-lag; our bodies feel tlru they have been left bebind in anot ar nine zoors Again pending too long at compulers resul’s in painti ninrts and fingers. Mobile phones also to dange according to some seientists; too much uss may thesmit h bul radiation into our brains, a we do not like to think about.
B. Howave, what do we do with the time we have saved?Certainly not or so it seems. We are so accustomed to constant activity that we find it difficult to sit and do nothing, or even just one thing at a time. Pcrhaps the days are long gone when we might listen quietly to a story on the radio, letting imavination take us into another world.
C. There was a time when some people’s lives were devotcd simply to the cultivation of the land or the eare of eattle. No multi-tasking there; their lives wenl on at a much gentler pace, and in a familiar pattern. There is much that we might envy about a way of life like this. Yet before we do so ,we must think of the hard tasks our ancestors faeed;:they farmed with bare hands, often lived close to hunger, and had to fashion tools from wood and stone. Modem machinery has freed peope fre that primitive existcnee.
D. 68.The new rooucts opcome more and more time-saving beeause ________
E. our lose e u speed uts never-ending
F. mo is liwhcd
G. shi pnces are increasingly high
H. the manufacturers boast a lot
[单选题]花药绒毡层细胞来自( )。
A. 表皮细胞
B. 初生壁(primary wall)细胞(周缘细胞)
C. 造孢细胞(造孢组织)
D. 中层细胞
[单选题]侧根起源于根的内部组织即内皮层，因此把这种起源方式称为内起源。 ( )
A. 正确
B. 错误
[单选题]花粉母细胞经过减数分裂产生4个大孢子。( )
A. 正确
B. 错误
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