题库
题库
A．Because it can’t be heard by human ears.
B．Because it can only be heard by female elephants.
C．Because people don’t know its meanings.
D．Because people haven’t studied it completely.
| 单选题 | — Who are those people gathering in front of the building? — A group __________ itself the youth volunteers. |
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| 单选题 | By using a sensitive microphone and a GPS tracking system, the researchers wanted to find out . | 查看答案 |
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| 单选题 | Mr. Smith __________ to have a talk with you. He will be here in a minute. | 查看答案 |
| 单选题 | The author’s attitude towards laughter movement is ____. | 查看答案 |
| 单选题 | The poet compares the woman he loves __________ a rose. | 查看答案 |
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| 单选题 | It __________ no difference to me whether their team can win the game or not. | 查看答案 |
| 单选题 | The girl __________ to me that she had __________ the book on the shelf. | 查看答案 |
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| 单选题 | What is the passage mainly about? | 查看答案 |
| 单选题 | Which of the following rules is set for the essay contest? | 查看答案 |
| 单选题 | ______ is no need for primary students to work at their desks all the long. | 查看答案 |
| 单选题 | The director made the demand that she __________ the dangerous place as soon as possible. | 查看答案 |
| 单选题 | A pregnant elephant uses inaudible growls to . | 查看答案 |
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| 单选题 | This part of country resembles England _______ its scenery. | 查看答案 |
| 单选题 | Why some elephants’ call is called “secret language”? | 查看答案 |
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