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下列说法正确是（）。
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原位杂交材料有什么（）？
翻译65题：65. Today you can do nearly all your banking by using your smart phone. Many of the major banks allow you to pay bills or transfer funds with a smart phone. Experts say that about 70% of Americans will use a mobile banking service in the near future. But some of them are worried about the safety of the mobile banking service. If you are to do banking frequently with your smart phone, you should get antivirus（防病毒）software and set a password on your phone.
Directions: This part, numbered 61 through 65, is to test your ability to translate English into Chinese. After each of the sentences numbered 61 to 64, you will read four choices of suggested translation. You should choose the best translation and mark the corresponding letter on your Answer Sheet. And for the paragraph numbered 65, write your translation in the corresponding space on the Translation/ Composition Sheet.61. To confirm the reservation, please visit our office during business hours with a deposit of 75% of the total tour fare per person.
【单选题】⼀⾎清标本的含氮量为5g/L,则该标本的蛋⽩质浓度是 (PPT习题)
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