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【简答题】
对称性是晶体与非晶体的主要区别之一,按对称特征矿物晶体可分为三晶族七晶系。其中,斜方晶系的对称特点是_____________,最常见的对称型是_____________;等轴晶系的对称特点是_____________,最常见的对称型是_____________。
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举一反三
【单选题】In the first paragraph, the word 'apparatus' means ______ .
A.
lung
B.
Liver
C.
equipment
D.
machine
【单选题】What are there in the library except books?
A.
Pictures, machines and hotels.
B.
Movies, machines and old stamps.
C.
Pictures, movies and experts.
【单选题】The main point of the first two paragraphs can best be illustrated as______.
A.
when a machine like a rotary engine malfunctions, it is the technologist who is best equipped to repair it
B.
a telephone is a complex instrument designed by technologists using only nonverbal thought
C.
the designer of a new refrigerator should consider the designs of other refrigerators before deciding on its form
D.
the distinctive features of a suspension bridge reflect its designer's conceptualization as well as the physical requirements of its site
【多选题】企业在内部控制评价实际操作中，评价结果的客观性往往受到现实各方面因素的影响，表现在()
A.
高管层对工作重视不够，有意回避存在的问题
B.
评价人员业务能力不强，缺乏科学的评价手段，对存在的风险识别不足
C.
内部控制、审计、专业部门沟通不够，信息无法共享
D.
内部控制评价独立性不强，评价过程中受下属单位管理层干涉
【单选题】According to this passage, which of the following statements is true?
A.
In boiler and machinery spaces, there is the air conditioning.
B.
In the boiler rooms the requirement of air volume should meet 25-50% of combustion requirement.
C.
To maintain the comfort zone in the separate control room the air conditioning plant should be fitted.
D.
The comfort conditions can be maintained in the engine room all the time.
【单选题】A communcitions protocal is a set of（）for exchanging information over a network.
A.
machine
B.
software
C.
rules
D.
hardware
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