The best title for the passage is _____________.

1 .From the information given in the passage, most minerals would melt fastest ________.

A at 4000℉, at sea level B at 4000℉, 5000 feet below sea level C at the exact center of earth at 4000℉ D at 4000℉, 5000 feet above sea level

题型: 单选题 提问时间: 2021-08-22

查看答案

---

2 .Which of the following statements in NOT true according to the passage?

A Geologists know that volcano action is caused by radioactive elements. B Geologists know that there is higher temperature within the earth. C The real causes of the heat inside the earth have not been found. D Scientists have made various guesses about the causes of heat inside the earth.

题型: 单选题 提问时间: 2021-08-22

查看答案

---

4 .What is the best title for the passage?

A Oil Refining : a historical perspective B The California Gold Rush: Get Rich Quickly C Private Property: Trespassers Will Be Prosecuted D Kerosene Lamps: A Light In the Tunnel

题型: 单选题 提问时间: 2021-08-22

查看答案

---

5 .It can be inferred from the passage that kerosene was preferable to whale oil because whale oil was too_______.

A expensive B thick C hot D polluted

题型: 单选题 提问时间: 2021-08-22

查看答案

---