单项选择题

Questions 14 to 17 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the questions.
Now listen to the passage.
The main idea of this passage is ______.

A．what the future of health care is like
B．how online doctors operate on patients
C．first-aid kit found wider uses
D．bandwidth is the limiting factor for transmitting images

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单项选择题

What is the best way for an adult to learn a language according to the conversation

A．Place the person in the country where the language is spoken.
B．Attend regular language classes.
C．You got to build your confidence in your learning process.
D．You got have a few hours a day to practice the language you’ re learning.

单项选择题

Few people realize that ______.

A．the Old West period wasn’t as long as most people think
B．cowboys contributed to the end of the Old West
C．cowboys played an important part in the Old West
D．the Old West lasted only 19 years

Questions 14 to 17 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the questions. Now listen to the passage. The main idea of this passage is ______. 您的浏览器不支持 audio 元素。

Questions 14 to 17 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the questions.
Now listen to the passage.
The main idea of this passage is ______.