There are four?______ seasons in my hometown; its warm in spring, hot in summer, cool in autumn and icy cold in winter.

单选题

There are four questions, which is not from the discourse teaching?

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单选题

There are four types of radiation-matter interactions that can contribute to the total attenuation. These are ______.

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单选题

There are radical differences between binary and decimal _____.

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多选题

There are four dunning program steps that can be performed during the automatic dunningProcedure as follows: Arrange these steps into the correct sequence.

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单选题

_____ doubt there are a lot of natural resources in this country.

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