题库
题库
A．it keeps offending bacteria from reproducing
B．its smell adds to bad breath
C．it kills some helpful bacteria
D．it affects the normal flow of saliva
| 单选题 | Mouthwashes are not an effective cure for bad breath mainly because ________. | 查看答案 |
| 单选题 | From what the Brazilian biologist says, we know that tourists like her ________. | 查看答案 |
| 单选题 | The captain ________ the horizon for approaching ships. | 查看答案 |
| 单选题 | Some fish have a greater ________ for acid water than others. | 查看答案 |
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| 单选题 | From the passage we can conclude that the U.S. has come to realize ________. | 查看答案 |
| 单选题 | “Good looks cut both ways for women” (Line 1, Para. 5) means that ________. | 查看答案 |
| 单选题 | Some children display an ________ curiosity about every new thing they encounter. | 查看答案 |
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| 单选题 | Comparison and contrast are often used ________ in advertisements. | 查看答案 |
| 单选题 | It is true that ________ a wild plant into a major food crop such as wheat requires much research time. | 查看答案 |
| 单选题 | To ________ for his unpleasant experiences he drank a little more than was good for him. | 查看答案 |
| 单选题 | It can be inferred from the passage that in the business world ________. | 查看答案 |
| 单选题 | If you want this pain killer, you’ll have to ask the doctor for a ________. | 查看答案 |
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| 单选题 | His argument does not suggest that mankind can ________ to be wasteful in the utilization of these resources. | 查看答案 |
| 单选题 | This is the ________ piano on which the composer created some of his greatest works. | 查看答案 |