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【单选题】
(Unit 5Text B) When you are cycling, you'd better______ the passing cars or trucks.A.
look for
B.
look after
C.
watch out for
D.
watch for
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【判断题】The policeman who appeared on the beat at the beginning of the story was Jim Wells who had come to meet his best friend in his youth, as he had promised to do twenty years ago.
A.
正确
B.
错误
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A.
预共享密钥
B.
数字证书
C.
路由协议验证
D.
802. lx
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