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【单选题】
数据链路层的基本功能不包括以下哪项:A.
透明传输
B.
差错控制
C.
链路管理
D.
逻辑寻址
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【简答题】天线水平波瓣角()多用于密集城市地区典型基站三扇区配置的覆盖 A30° B65° C90° D105°
【单选题】________ boasted of her superiority to Leto because she had fourteen children seven male and seven female, while Leto had only two.
A.
Psyche
B.
Myrrha
C.
Niobe
D.
Medusa
【单选题】紫外-可见分光光度法的定量依据是（）
A.
Lambert-Beer定律
B.
Molisch定律
C.
Kober定律
D.
Matol定律
E.
Elson-Morgan定律
【单选题】. She had only twenty dollars left, _____ to buy her two children Christmas presents.
A.
in which
B.
with which C with that D. in that
【简答题】天线水平波瓣角()多用于密集城市地区典型基站三扇区配置的覆盖 A0° B5° C0° D05°
【单选题】My sister had a(n)______for music when she was only two years old.
A.
ability
B.
intelligence
C.
interest
D.
talent
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