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【判断题】
在进行框架结构设计时,梁截面高度可初步选为hb=(1/10-1/18)lb,且满足于hb/bb≤4A.
正确
B.
错误
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举一反三
【单选题】下列哪项不属于例证法的注意事项?( )
A.
事例要典型、确凿、有影响力。
B.
事例的叙述要简明扼要，高度概括
C.
事例切忌单一、狭隘，要丰富广阔、点面结合，古今中外相映成辉
D.
叙述之后不需要分析
【单选题】Which of the following is Cathy's suggestion about choosing gifts?
A.
Do not choose clothes or jewelry as gifts.
B.
Be patient and try to guess what people like.
C.
Buy nothing.
D.
Buy something that shows your love.
【简答题】一个平均输出功率为50 MW 的发电厂,热机循环的高温热源温度为T 1 =1000 K,低温热源温度为T 2 =300 K,求: (1)理论上热机的最高效率为多少? (2)这个厂只能达到这个效率的70%,为了产生50 MW的电功率,每秒钟需要提供多少焦耳的热量?
【单选题】Which of the following gifts is considered! proper in the given situation?
A.
A bar of chocolate for a friend from Indonesia.
B.
Pairs of chopsticks for a Chinese.
C.
An English dictionary for a beginning learner of English.
D.
Scissors for a friend in Thailand.
【简答题】实践任务 试定义一个类STR,实现两个字符串的交集。写出设计思路
【单选题】Which of the following is NOT TRUE according to the passage?
A.
Gifts avoid mathematics courses for social masons.
B.
Girls avoid mathematics courses for biological reasons.
C.
In schools there is difference between sexes in mathematics achievement.
D.
Girls are often given answers in solving scientific problems.
【单选题】Which of the following can be used to sum up the whole passage?
A.
The importance of gifts in social relations.
B.
Gifts giving and cultural knowledge.
C.
Etiquette of gift giving in Asia.
D.
To give is better than to receive.
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