单项选择题 The expression“thrown off” in the third paragraph is closest in meaning to“() ”.
单项选择题 Which of the following statements about Vandergrift’s research is TRUE()
单项选择题 What does Vandergrift’s research show()
单项选择题 What is the main idea of this passage()
单项选择题 Which of the following is an appropriate title for this passage()
单项选择题 The word “mixed”in the first paragraph means “() ”.
单项选择题 According to the author, scientists () .
单项选择题 According to the passage, which of the following is TRUE()
单项选择题 According to the first paragraph, reporters would like to know the research findings of()