product 测验

[ˈpɹɒd.ʌkt]

[ˈpɹɑd.ʌkt]

[ˈpɹɑd.əkt]

名产品, 产物, (乘)积

问题 1 :

Studies on spot samples in local wells in the area reporting As levels up to 240 μg/L [67 , 69 ], and studies on phytoavailable arsenic in local agricultural soil showing high concentration in wheat (55.0 ng g -1 of dw) [20 ], confirm additional population exposure to inorganic arsenic due to local agriculture-based products, given that the area is predominantly a rural economy.

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product

问题 2 :

Any infinite-dimensional Fréchet space homeomorphic with its countable product is topologically a Hilbert space.

products
product

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