flight test letter 试飞通告
Test letter 考信
dirt test letter 染质试验
capon comb growth test letter 阉鸡冠生长试验
letter test 文学测试
letter cancellation test 字母划销测验
When it comes to the letter grade on your test or homework, you might notice that there is no letter. Have you ever thought about why that is so?
当涉及到你的考试或家庭作业的字母分数时，你可能会注意到没有字母。你想过为什么会这样吗？
The museum said that every possible test has been done on the painting and insisted that "no inscriptions, letter or numbers, were discovered during these tests.
博物院称已经对《蒙娜丽莎》进行了一切可能的测验，并称“在测验中没发现任何题字、书信和数字。”
Smith & Nephew slid 1.6 percent to 675 pence after the company got a warning letter from the FDA saying it failed to properly test medical devices.
英国施乐辉公司股价下跌1.6%，至675便士，该公司收到了美国食品药品管理局的警告信，表示施乐辉公司没有通过医疗设备测试。
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