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认证中心是发放数字证书的受信任的第三方。()

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安装了防病毒软件的电脑就可以对病毒免疫了。()

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几乎所有网站都会使用 Java。()

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Consider the cornfield with soil that had an amino sugar N content of 350 mg/kg in Study 2. Based on Figure 2 and other information provided, was the soil in the cornfield responsive or nonresponsive？

A. Responsive, because the yield did not increase.
B. Responsive, because the yield increased.
C. Nonresponsive, because the yield did not increase.
D. Nonresponsive, because the yield increased.

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使用手杖时，无论向哪个方向移动，都要先移动脚步，再移动手杖。()

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