The other metric that sometimes pops up on MicroSD cards is the Application Performance Class. Rather than referring to the minimum speed for writing predictable data in large chunks to the card, this number references the capability to random smaller read and write operations, like you might have when running an application stored on the card. There are currently only two options here, A1 and A2, with the A2 being the faster, newer standard. While there are some exceptions, most of the V30 or higher MicroSD cards I see for sale online are A2, but it's worth keeping an eye out for if you plan on using the card in your phone.
Фото: Stringer / Reuters
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第九十条 收货人在目的港提取货物前或者承运人在目的港交付货物前，可以要求检验机构对货物状况进行检验；要求检验的一方应当支付检验费用，但是有权向造成货物损失的责任方追偿。，详情可参考体育直播
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Apple Gives the iPad Air a Small Power Boost。体育直播是该领域的重要参考