题库
题库
A．theories of its origin and history are varied
B．our knowledge of it is highly insecure
C．only a very small sample of it has been observed
D．few scientists are involved in the study of astronomy
| 单选题 | What do we learn from the first paragraph? | 查看答案 |
| 单选题 | The city has decided to ________ smoking. | 查看答案 |
| 单选题 | 查看答案 | |
| 单选题 | It can be inferred from Berger’s suggestions that ________. | 查看答案 |
| 单选题 | It can be inferred from Paragraph 2 that ________. | 查看答案 |
| 单选题 | I guess Jones didn’t have a chance to win the election. Almost all of the people in the city voted for his ________. | 查看答案 |
| 单选题 | 查看答案 | |
| 单选题 | 查看答案 | |
| 单选题 | Apple hopes to increase Mackintosh sales chiefly by ________. | 查看答案 |
| 单选题 | The ceremony will ________ as soon as the minister arrives. | 查看答案 |
| 单选题 | In developing personal relationships, secrets and deceptions, in the author’s opinion, are ________. | 查看答案 |
| 单选题 | Apple sells its new computer models at a high price because ________. | 查看答案 |
| 单选题 | 查看答案 | |
| 单选题 | The author’s attitude towards the development of nuclear power is ________. | 查看答案 |
| 单选题 | We know less about the astronomical universe than we do about any social system because ________. | 查看答案 |
| 单选题 | So confused ________ that he didn’t know how to start his lecture. | 查看答案 |
| 单选题 | Teaching students of threshold level is hard work but the effort is very ________. | 查看答案 |
| 单选题 | The best title for the passage would be ________. | 查看答案 |
| 单选题 | The background music in an assembly line is designed ________. | 查看答案 |
| 单选题 | 查看答案 |