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【多选题】
"口令"是保证系统安全的一种简单而有效的方法.一个好的口令应当( ).A.
只使用小写字母
B.
混合使用字母和数字
C.
易于记忆
D.
具有足够的长度
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【单选题】You must speak up .Tell her that these comments hurt your feelings . Maybe she has to put You down to feel good about herself.or maybe she is jealous . Your friends should help you feel good about you...
A.
You should end the friendship
B.
You should talk to your friend
C.
You should help your friend feel good
D.
You should keep silent.
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【单选题】听力原文：W: Excuse me, may I use your phone? M: Help yourself. It' s over there on the table. What did the man tell the woman to do?
A.
Bring some food to the table.
B.
Help herself to some food.
C.
Go ahead and use the phone.
D.
Bring the phone over to the table.
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