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【单选题】
物联网工程设计工作必须遵循的一些附加条件。一般来说,物联网设计的约束因素主要来自于_________方面A.
政策、资金、工期和人力资源
B.
政策、预算、时间和技术
C.
政策、预算、人力资源
D.
政策、技术、人力资源和预算
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皮皮学刷刷变学霸
举一反三
【简答题】锁环式惯性同步器,它主要由花键毂、接合套、 、 、定位销及弹簧等组成.
【单选题】Which of the following statements is not true about the prepared speech?
A.
It is the foundation for everything that follows.
B.
A strong prepared speech is vital to getting started on the right foot.
C.
You can always win a competition on the basis of your prepared speech alone.
D.
It builds the speaker’s confidence for the rest of the competition.
【单选题】A successful speech is a form of communication with the audience, so preparing a strong delivery should involve a significant amount of attention to the needs and interests of the ( ).
A.
audience
B.
speaker
C.
organizer
D.
reporter
【简答题】TCP/IP协议参考模型共分( )层,其中第三,四层分别是( )、( )。
【简答题】TCP/IP 协议参考模型共分了_______层,其中从下往上数第3层是_______ 。
【多选题】锁环式惯性同步器的结构由那些部件组成?
A.
细牙螺旋槽，破坏油膜
B.
锁环：带锁止角的外花键齿（锁止装置） ，缺口c，凸起d，带螺纹槽的内锥面（摩擦件）
C.
花键毂：外花键齿，滑块、定位销、弹簧（推动件）
D.
接合套（接合装置） ：带内花键齿，有凹槽a（空档定位）
【判断题】Using strong, credible testimony is the best way to add human interest to a speech.
A.
正确
B.
错误
【单选题】Which is NOT the one that the president call on students to do at the end of his speech?
A.
To carry their responsibilities
B.
To cherish the opportunities
C.
To travel around the world
D.
To bulid a strong future for the later generations.
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