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【简答题】
试述低压断路器有哪些保护功能 ?
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【单选题】L7(8B) 表示( ) prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
7 号非框架梁， 8 跨，其中两跨为悬挑梁 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
B.
7 号框架梁， 8 跨，两端为悬挑梁 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
C.
7 号连梁， 8 跨，其中两跨为悬挑梁 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
D.
7 号连梁， 8 跨，两端为悬挑梁，悬挑梁不计入 8 跨内
查看完整题目与答案
【单选题】English people ___________ use “Mr” before a person’s given name.
A.
never
B.
usually
C.
often
D.
sometimes
查看完整题目与答案
【简答题】阅读理解。 Many (许多) English people (人) have three names, a first name, a middle name and a last name (or a family name). For example (例如), my name is James Allan Green. James is my first name. Allan is my...
查看完整题目与答案
【单选题】Examine the structure of the EMPLOYEES table: You need to create an index called NAME_IDX on the first name and last name fields of the EMPLOYEES table. Which SQL statement would you use to perform th...
A.
CREATE INDEX NAME_IDX (first_name, last_name);
B.
CREATE INDEX NAME_IDX (first_name AND last_name);
C.
CREATE INDEX NAME_IDX   ON (first_name, last_name);
D.
CREATE INDEX NAME_IDX   ON employees (first_name AND last_name);
E.
CREATE INDEX NAME_IDX   ON employees(first_name, last_name);
F.
CREATE INDEX NAME_IDX   FOR employees(first_name, last_name);
查看完整题目与答案
【单选题】When you sign a formal email, you should use your ________. A. full name B. first name C. last name
A.
full name
B.
first name
C.
last name
D.
d.family name
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【单选题】According to the last paragraph, with the increased use of network, people will______.
A.
depend more on network
B.
need more network
C.
benefit more from network
D.
demand faster speed
查看完整题目与答案
【单选题】English people use Mr. ,Mrs. or Miss with ______.
A.
the family name
B.
the first name
C.
the middle name
D.
the first name and the middle name
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【单选题】How do Americans call each other in formal situations?
A.
They normally call each other by their first names.
B.
They normally call each other by their last names.
C.
They usually use a title with the last name.
D.
They usually use a nickname or special name.
查看完整题目与答案
【单选题】---“Did you have any difficulty in today’s homework?”---“No, in fact I found __________.” prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
it very easy to do
B.
it very easy done
C.
very easy for doing
D.
very easy to do it prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
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【单选题】We can learn from the last paragraph that______.
A.
it is necessary for people to use phone calls, instant messages and direct photo shots via the mobile
B.
unlike phone calls, instant messages and direct photo shots via the mobile, postcards are not functional
C.
it is necessary for people to use postcards in spite of the convenience provided by other devices
D.
postcards are completely the same as phone calls, instant messages and others
查看完整题目与答案
相关题目：
【单选题】L7(8B) 表示( ) prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
7 号非框架梁， 8 跨，其中两跨为悬挑梁 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
B.
7 号框架梁， 8 跨，两端为悬挑梁 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
C.
7 号连梁， 8 跨，其中两跨为悬挑梁 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
D.
7 号连梁， 8 跨，两端为悬挑梁，悬挑梁不计入 8 跨内
查看完整题目与答案
【单选题】English people ___________ use “Mr” before a person’s given name.
A.
never
B.
usually
C.
often
D.
sometimes
查看完整题目与答案
【简答题】阅读理解。 Many (许多) English people (人) have three names, a first name, a middle name and a last name (or a family name). For example (例如), my name is James Allan Green. James is my first name. Allan is my...
查看完整题目与答案
【单选题】Examine the structure of the EMPLOYEES table: You need to create an index called NAME_IDX on the first name and last name fields of the EMPLOYEES table. Which SQL statement would you use to perform th...
A.
CREATE INDEX NAME_IDX (first_name, last_name);
B.
CREATE INDEX NAME_IDX (first_name AND last_name);
C.
CREATE INDEX NAME_IDX   ON (first_name, last_name);
D.
CREATE INDEX NAME_IDX   ON employees (first_name AND last_name);
E.
CREATE INDEX NAME_IDX   ON employees(first_name, last_name);
F.
CREATE INDEX NAME_IDX   FOR employees(first_name, last_name);
查看完整题目与答案
【单选题】When you sign a formal email, you should use your ________. A. full name B. first name C. last name
A.
full name
B.
first name
C.
last name
D.
d.family name
查看完整题目与答案
【单选题】According to the last paragraph, with the increased use of network, people will______.
A.
depend more on network
B.
need more network
C.
benefit more from network
D.
demand faster speed
查看完整题目与答案
【单选题】English people use Mr. ,Mrs. or Miss with ______.
A.
the family name
B.
the first name
C.
the middle name
D.
the first name and the middle name
查看完整题目与答案
【单选题】How do Americans call each other in formal situations?
A.
They normally call each other by their first names.
B.
They normally call each other by their last names.
C.
They usually use a title with the last name.
D.
They usually use a nickname or special name.
查看完整题目与答案
【单选题】---“Did you have any difficulty in today’s homework?”---“No, in fact I found __________.” prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
it very easy to do
B.
it very easy done
C.
very easy for doing
D.
very easy to do it prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
查看完整题目与答案
【单选题】We can learn from the last paragraph that______.
A.
it is necessary for people to use phone calls, instant messages and direct photo shots via the mobile
B.
unlike phone calls, instant messages and direct photo shots via the mobile, postcards are not functional
C.
it is necessary for people to use postcards in spite of the convenience provided by other devices
D.
postcards are completely the same as phone calls, instant messages and others
查看完整题目与答案