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【简答题】
双绞线适用于模拟和数字通信,是一种通用的传输介质,可分为()双绞线STP和()双绞线UTP两类
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皮皮学刷刷变学霸
举一反三
【单选题】Mary ______ that the purchase had been a mistake. However, she didn't.
A.
ought to acknowledged
B.
ought to have acknowledged
C.
should acknowledge
D.
should be acknowledging
【单选题】Mary keeps talking about the party. She had a very good time,_______?
A.
hadn’t she
B.
had she
C.
didn’t she
D.
did she
【单选题】Mary's brother had a talk at school yesterday afternoon, ______ he? [ ]
A.
had
B.
hadn't
C.
did
D.
didn't
【单选题】Mary said that she ______ the cold for several days and still couldn't get rid of it.
A.
had had
B.
had caught
C.
has caught
D.
caught
【单选题】— Mary, why didn't you come yesterday? — I _____, but I had an unexpected visitor. [ ]
A.
had
B.
did
C.
would
D.
was going to
【单选题】患者,女性,25岁,有不洁性接触史。近3个月来发热、咳嗽、喘憋,疑为肺炎,经多种抗生素治疗无效,全身状况日渐衰竭,全身淋巴结肿大。为确诊首先应作的检查是( )
A.
痰培养
B.
肺功能
C.
胸部CT
D.
胸部X线检查
E.
血清抗-HIV
【简答题】“I had a test and didn’t want to do it, so I pretended to be ill”, says 13-year-old Mary. But Mary did not enjoy her day off. “It was boring. I wished I had gone to school.” Mary’s story is not unusua...
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