题目内容
所有的螺纹联接都需要预紧。
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螺纹拧紧后需要防松,目的是在防止螺旋副间再相对转动。
Listen to the following sentences and fill in the blanks.(1)A product title should contain color, size or ______________.(2)Product titles on Amazon are allowed up to _________________.(3)On some cross-border e-commerce platforms, you should avoid putting prices, _____________ symbols and suggestive commentary in the title.(4)The hooded jackets come in various colors and many different _________________.(5) The zip-hoodie is made from 50% cotton and 50% __________________.
VerilogHDL使用的逻辑是（ ）。
在FPGA设计中，IP的中文含义是（ ）。
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