问题描述：
[单选]
登顶作业可以戴防冲击安全帽
A．正确
B．错误
参考答案：查看无
答案解析：无
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答案解析：无
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上一篇：根据短文，判断2-8题是否正确Mary"s dream house is at the beach． It has got two floors． There is an orange living room， and a purple kitchen downstairs． A blue dining room is between them． Mary"s dream bedroom is upstairs． There is a bed， a desk， a chair and a bookcase in the bedroom． Outside the bedroom， there is a balcony． It is like a small garden with many plants．1． Mary"s dream house has got three floors． Yes or No？
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