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| 1. | Tom is a singer. He likes singing very much. Every morning he gets up very early. |
| Ⅸ. Read and tick or cross. (阅读理解。) |
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| -- 来源 -- 英语活学活用 六年级上册 与人教PEP同步 - Unit 4 I Have a Pen Pal |
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| 2. | This is a pretty early tick, I reckon. |
| 我认为这是个较早的扁虱， |
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| -- 来源 -- 汤姆?索亚历险记 - The Adventures of Tom Sawyer Chapter 6 (4) |
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| 3. | This is a pretty early tick, I reckon. It's the first one I've seen this year." |
| 我认为这是个较早的扁虱，是我今年见到的头一个。” |
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| 4. | Diagnosis of an infectious disease at an early stage by exposing a presumably infected individual or tissue to a clean, laboratory-bred mosquito, tick, or other vector and then examining the vector for the presence of the infective microorganism. |
| 异体接种诊断（法）早期传染病的一种诊断方法，将假定的被感染的个体或组织暴露给清洁的、实验室饲养的蚊子、壁虱或其它带菌者，然后通过检查带菌者来确定传染性微生物是否出现 |
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