题目内容

According to Paragraph 1, which of the following is true of La Nina?

A. It brings an end to El Nino.
B. It balances the effects of El Nino.
C. It follows a decrease of ocean temperature.
D. It causes the ocean temperature to drop rapidly.

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To which of the following statements would Steven Pinker most probably agree?

A. Music serves no facility for the formation of people"s habits.
B. Music and exquisite dessert share great similarities.
C. The absence of music brings little effect to human life.
D. Music helps to erase the brutal characteristics in human.

二氧化碳气体保护焊焊机一般采用直流正接。()

夏天身体出汗后衣服潮湿,身体靠在焊件上不会触电。()

人体持续接触而不会使人直接致死或致残的电压称为安全电压。()

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