1 . 很少有人知道这位30岁的外科医生曾经历过一场险些致命的交通事故。（cost）（汉译英）
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2 . 在发现研究结果并不确凿后，对科研充满热情的呦呦决心在自己身上测试该药物，最终找到了正确的疗法。(conclusive) (汉译英)
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3 . We also lose heat by transporting the blood to the surface of the skin ________ it can lose heat out into the external environment.

A．when

B．so

C．where

D．unless

4 . 许多成就大事的人都有一个共同之处：虽然开始并不顺利，但他们坚守信念并不懈努力，最终取得成功。（despite, start v.） （否则）
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5 . 大部分参加会议的年轻人都认同我们的品牌。(identify) (汉译英)

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6 . “Thank you for letting me observe your classes. It was an unusual experience,” the email began,_______got my heart racing. (用适当的词填空)

7 . 这家以海鲜为特色的餐厅，已经成为了一个旅游景点，挤满了来自国内外的游客。(feature) (汉译英)

8 . 永远铭记那段因为战乱而无家可归的日子，因为那些日子改变了人们对家庭和这个世界的看法。(convert) (汉译英)

9 . Dominating the list are high-income countries, ________ the average ecological footprint is now five times that of poor nations.

A．of which

B．what

C．in which

D．whose

10 . I will briefly explain to you the way ________ we use to simplify the communication process within the team.

A．that

B．in which

C．through which

D．by which