车身新板件的更换必须在相连接配合的板件彻底修复后才能进行。
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地震区允许采用底层或底部若干层全部为框架的框支剪力墙结构。
A. 正确
B. 错误
In a brute-force attack, what percentage of the keyspace must an attacker generally search through until heor she finds the key that decrypts the data?()
A. Roughly 50 percent
B. Roughly 66 percent ActualTests.com
C. Roughly 75 percent
D. Roughly 10 percent
人体因操作不慎而触及两相带电体,称为()触电
A. 单相
B. 两相
C. 接触电压