and 测验

[ænd]

[ɛnd]

[ən(d)]

[ɛn]

[n̩]

[-ænd]

[-ɛnd]

US ham and eggs

连和, 而且维AND

问题 1 :

If the sun were a hallow sphere of its present size ___ the earth were placed at the center, the moon could [...]. Such a hallow sphere would hold more than a million balls the size of the earth.

anding
anded
ands
and

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