绑扎室内C30梁钢筋,当设计无具体要求时,其保护层厚度应为()。A.45mm B.3

题型:单项选择题

问题:

绑扎室内C30梁钢筋,当设计无具体要求时,其保护层厚度应为()。

A.45mm

B.35mm

C.25mm

D.15mm

考点:注册建筑师法律、法规、经济与施工法律、法规、经济与施工1
题型:单项选择题

心肌细胞不发生强直收缩的原因是

A.有效不应期长
B.兴奋性低
C.具有不应期
D.肌质网不发达
E.有自律性

题型:单项选择题

阅读下面短文,并根据短文后的要求答题。

      The relationship between students and teachers is less formal in the U.S. than in many other countries,

especially at college. (1)当老师走进教室时,学生不必起立。Students are encouraged to ask

questions during class, to go to the teacher’s office for help after class, and to phone if they can’t go to

school and need help with their lessons. (2)Most teachers allow students to enter class late or leave early,

if necessary.

     (3)However, students are still asked to be polite to their teacher and classmates and to be quiet during

a test. When students want to ask questions, they usually put up a hand and wait. When the teacher or a

student is speaking to the class, it’s rude to talk to another classmate, even in a low voice. When a test is

being given, talking to a classmate is not only rude but also wrong. In the eyes of most American teachers,

students who are talking to each other during a test are cheating.

1.将(1)句译成英文。

________________________________________________________________

2.将(2)句改为被动语态。

________________________________________________________________

3.将(3)句译成中文。

______________________________________________________________

4.从文中找出与所给句子意义相近的句子。

Most teachers think it is dishonest of students to talk about something when they are having an exam.

________________________________________________________________________

5.写出文中最能表达该短文主题的句子。

________________________________________________________________

题型:单项选择题

度量了因变量与k个自变量的总体相关程度的指标为()。

A.相关系数

B.多重相关系数

C.多重判定系数

D.估计标准误差

题型:单项选择题

在基频以下,属于()调速性质,而在基频以上,基本上属于()调速。

题型:单项选择题

假设某计算机的存储系统由Cache和主存组成,某程序执行过程中访存1000次,其中访问Cache缺失(未命中)50次,则Cache的命中率是()。

A.5% 

B.9.5% 

C.50% 

D.95%

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