以下哪些是线束检测标准()。
A.线束表面光滑无损坏
B.端子压接正确、无漏铜、无压表皮现象
C.号码管套正确
D.焊接正确
参考答案:A, B, C, D
All of us like computer games, ________ we can't spend too much time on it. [ ]
A. and
B. but
C. or
D. so
使用口令进行身份认证的优缺点?