题库
题库
A．It influences the surface temperature of Mars.
B．It protects living beings from harmful rays.
C．It keeps a planet from overheating.
D．It is the main component of the air people breathe.
| 单选题 | We’ll be very careful and keep what you’ve told us strictly ________. | 查看答案 |
| 单选题 | The navigation systems in cars like Lexus, BMW and Audi are mentioned to show ________. | 查看答案 |
| 单选题 | The huge increase in world production and population ________. | 查看答案 |
| 单选题 | The primary solution to environmental problems is ________. | 查看答案 |
| 单选题 | A human’s eyesight is not as ________ as that of an eagle. | 查看答案 |
| 单选题 | Although the model looks good on the surface, it will not bear close ________. | 查看答案 |
| 单选题 | The prison guards were armed and ready to shoot if ________ in any way. | 查看答案 |
| 单选题 | Please do not be ________ by his offensive remarks since he is merely trying to attract attention. | 查看答案 |
| 单选题 | The club will ________ new members the first week in September. | 查看答案 |
| 单选题 | 查看答案 | |
| 单选题 | The author believes that intelligence testing ________. | 查看答案 |
| 单选题 | 查看答案 | |
| 单选题 | 查看答案 | |
| 单选题 | 查看答案 | |
| 单选题 | Despite their varied designs, navigation computers used in cars ________. | 查看答案 |
| 单选题 | Just because I’m ________ to him, my boss thinks he can order me around without showing me any respect. | 查看答案 |
| 单选题 | 查看答案 | |
| 单选题 | Already the class is ________ about who our new teacher will be. | 查看答案 |
| 单选题 | Some American colleges are state-supported, others are privately ________, and still others are supported by religious organizations. | 查看答案 |
| 单选题 | 查看答案 |