Question 1
Since 1970, the U.S. economy has experienced ________ period(s) of high inflation.
Question 2
Since 1970, the U.S. economy has experienced ________ recession(s).
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.
The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
Illicit drug use costs the United States approximately $181 billion every year.
In 1864, the first barbiturate (barbituric acid) was synthesized.
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