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【单选题】
关于种子的结构,下列说法不正确的是(  )
A.
一粒玉米就是一个果实
B.
胚由胚根、胚芽,胚轴、胚乳构成
C.
胚是植物的幼体
D.
种子萌发时,胚根发育成根,胚芽发育成茎和叶
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【简答题】Ecrivez les nombres en toutes lettres: 2 178 000 pages
【简答题】Ecrivez les nombres en toutes lettres: 500 étudiants
【判断题】To show his deep respect for Laozi, Legge put Tao Te Ching in the first place in his Chinese Classics translation series.
A.
正确
B.
错误
【简答题】1H =( )mH;1 H =( )μH。A. 1 B. C. D.
【单选题】The author uses the example of 'two melodies' (Para. 2)to______.
A.
show how deep and complex his music is
B.
explain why people today enjoy his music
C.
illustrate why Bach was a good music teacher
D.
teach readers how to combine two songs
【单选题】自感系数单位换算正确的是()
A.
1H=103mH
B.
1μH=10mH
C.
1H=10mH
D.
1μH=10MH
【简答题】Ecrivez les nombres en toutes lettres: 199 kilogrammes
【简答题】1H = mH = μ H
【简答题】Ecrivez les nombres en toutes lettres: 600 000 moutons
【简答题】Ecrivez les nombres en toutes lettres: 71 dollars