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【单选题】
( 09 年 33 题) 在 OSI 参考模型中,自下而上第一个提供端到端服务的层次是A.
数据链路层
B.
传输层
C.
会话层
D.
应用层
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【单选题】After the teacher called him into the office, the boy admitted _______ in the test.
A.
to cheat
B.
cheated
C.
cheat
D.
cheating
【单选题】The boy admitted to us _____ he had left home without his parents’ permission.
A.
what
B.
whatever
C.
that
D.
which
【简答题】A．临界高血压 B．轻度高血压 C．中度高血压 D．重度高血压 E．单纯收缩期高血压 若收缩压在140～149mmHg间波动，同时舒张压小于90mmHg，其高血压类别是
【单选题】The boy admitted ________ the glass of the window, but he denied ________ it on purpose.
A.
to break; to break
B.
to have broken; to have broken
C.
having broken; breaking
D.
being broken; broken
【单选题】The boy admitted ______ the truth.
A.
not to tell
B.
telling not
C.
not telling
D.
to telling
【简答题】单纯收缩期高血压是 答案ABCDE
【单选题】The boy has admitted to ____ the window while playing football yesterday
A.
breaking
B.
having been broken
C.
break
D.
be breaking
【简答题】单纯收缩期高血压水平范围是（ ）。
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