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简牍装当中，“牍”的含义是？
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Toast.makeText(Context context, CharSequence text, int duration)函数的第三个参数一般使用Toast自带的两个整型常量，即LENGTH_LONG和LENGTH_SHORT，用于选择提示信息持续显示时间的长短。
下列语句中，让提示信息显示的一句是
程序中指定一个控件时，一般用函数_______________________________通过这个控件的____________属性锁定它。
Task 1Directions: After reading the following passage, you will find 5 questions or unfinished statements numbered 36 to 40. For each question or statement there are 4 choices marked A), B), C) and D). You should make the correct choice and mark the corresponding letter on the Answer Sheet with a single line through the center.What can E-medical(E-med) offer?We offer advices with your own private online doctor by e-mail or phone. If we cannot sort out your problems in that manner, we can refer you to a specialist(专家) in the field you need for further investigations or examinations.What if you cannot make a diagnosis(诊断)by e-mail?When we receive your e-mail and the doctor feels that he needs to speak to you to discuss your problems, he will call you immediately and we can help you that way.But if we feel it is necessary, we may ask you to have a video consultation to make a diagnosis or to treat you, or even refer you to a specialist.What about medical investigations?If you need further medical investigations to work towards a diagnosis, such as blood tests or scans(扫描), your E-med doctor can usually refer you to a hospital in on London. Other medical investigations can also be arranged remotely. The result will be sent to your E-med doctor, who can then advise you on what to do next.40. We can learn from the passage that E-med service provides medical advices_________.
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