单项选择题

Questions 11 to 13 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions.
What is the finding of scientists

A．Plants can save water.
B．Photosynthesis is complex.
C．High carbon dioxide is not good to crops.
D．The new way of food engineering raises production.

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单项选择题

Which of the following are NOT mentioned in putting out the fire

A．People.
B．Dogs.
C．Vehicles.
D．Airplanes.

单项选择题

Why does Miss Brown consider her so lucky

A．She knows how to write best-selling novels.
B．She can make a living by doing what she likes.
C．She can earn a lot of money by writing for adults.
D．She is able to win enough support from publishers.

Questions 11 to 13 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions. What is the finding of scientists 您的浏览器不支持 audio 元素。

Questions 11 to 13 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions.
What is the finding of scientists