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【简答题】
假设传输距离为 1300m ,传输速度为 1Gb/s ,可选用 ______ 光纤。
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反馈参考答案：
举一反三
【单选题】Microsoft's COM is a software(71) that allows applications to be built from binary software components. COM is the underlying architecture that forms the foundation for higher-level software services,...
A.
structure
B.
procedure
C.
protocol
D.
architecture
【单选题】Which of the following statements is correct?
A.
The definition phase results in the Software Requirements Specification.
B.
Testing is optional in software life cycle.
C.
CASE tools can only aid in the design phase of a software life cycle.
D.
A change during a later phase does not require the documentation of all earlier phases to be updated.
【单选题】已知待测拉力约为 70N 左右。现有两只测力仪表,1为 0.5 级,测量范围为 0 ~ 500N ;2为 1.0 级,测量范围为 0 ~ 100N 。问选用哪一只测力仪表较好( )
A.
1
B.
2
C.
3
D.
4
【简答题】食品中亚硝胺类化合物是怎样产生的?如何预防?
【单选题】患者,男,有支气管哮喘病史。昨日吃海鲜后出现哮喘发作,该患者血液检查时可发现
A.
淋巴细胞增多
B.
单核细胞增多
C.
中性粒细胞增多
D.
嗜酸性粒细胞增多
E.
嗜碱性粒细胞增多
【单选题】Operations ( ) is a document that describes in detail the processes that users operate the softwar。
A.
Paper
B.
Book
C.
Menu
D.
Manual
【单选题】Microsoft's COM is a software(146)that allows applications to be built from binary software components. COM is the underlying architecture that forms the foundation for higher-level software services,...
A.
architecture
B.
protocol
C.
procedure
D.
structure
【单选题】户外活动时,明明扭伤了脚,下列错误的处理方法( )。
A.
24小时内用冰块或冷水毛巾反复多次冷敷（20~30min，检查皮肤的温度，间隔10~20min）
B.
怀疑骨折应去医院检查
C.
揉按受伤部位
D.
24-48小时后热敷/活络油，促进血液循环
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