根据文章内容判断(T)误(F)。

     This is Radio Station in Los Angeles. At nine o'clock on Friday, it's time for the morning weather

report.

     This morning it will be cloudy, but no rain today. By noon the sun will be shining.

     The temperature is now seventy two, with a high of about eighty for this afternoon—a good day for

swimming.

     Tomorrow it will be sunny. The low temperature will be sixty, with a high of eighty-six.There may be a

little rain in the afternoon.Winds will be soft.This weather report has been brought to you by Mary Smith .

( )1. The weather is reported by Mary Smith.

( )2. Today's temperature will be eighty.

( )3. This is a TV weather reporter.

( )4. Today there will be a little rain.

( )5. It is noon now.

抽提RNA时如何防止降解？