【名词&注释】
水利工程(hydraulic engineering)、农田灌溉(farmland irrigation)、孤雌生殖(parthenogenesis)、营养繁殖(vegetative propagation)、有利于(beneficial to)、地下茎(rhizome)、助细胞(synergid)
[单选题]隋唐时期,淮水以北新增的有利于农田灌溉的水利工程是( )。
A. 郑国渠
B. 芍陂
C. 通济渠
D. 邗沟
查看答案&解析查看所有试题
学习资料:
[单选题]One of the most important questions they had to consider was _____ of public health.
A. what B. this
B. that D. which
[单选题]—Have you played baseball before?We need one more player.— I_______ like ball games, so I belives it will be fun to learn baseball.
A. Sometinmes
B. Not really
C. Never mind
D. That’s cool
[单选题]香蕉等芭蕉科植物只有地下茎(rhizome),地上的茎状物为由叶鞘包叠而成的假鳞茎。( )
A. 正确
B. 错误
[单选题]由助细胞(synergid)、反足细胞或极核发育成胚称( )。
A. 孤雌生殖
B. 无配子生殖
C. 无孢子生殖
D. 营养繁殖
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