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【单选题】
为了在变压器原、副绕组方得到正弦波感应电动势,当铁心不饱和时激磁电流为()。A.
尖顶波
B.
C.
正弦波
D.
不确定
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【单选题】水准测量时在后视点A 上的读数为1.226，在前视点B上的读数为1.737，则AB两点之间的高差hAB 为( )。
A.
1.226
B.
1.737
C.
0.511
D.
-0.511
【单选题】以下选项中关于c语言常量的叙述错误的是( )。
A.
所谓常量，是指在程序运行过程中，其值不能被改变的量
B.
常量分为整型常量、实型常量、字符常量和字符串常量
C.
常量可分为数值型常量和非数值型常量
D.
经常被使用的变量可以定义成常量
【单选题】AIDS, which is an instance of _____, is short for "acquired immune deficiency syndrome".
A.
pure acronyms
B.
hybrid acronyms
C.
syllabic acronyms
D.
initialisms
【单选题】The placement of a dome over an arched alcove is a characteristic of Persian architecture, successfully adapted in the Taj Mahal to a Mogul design. ( Hint: Look at the picture of the Taj Mahal.)
A.
a decorated circular swimming pool containing a fountain
B.
a large open balcony with trees and flowers on it
C.
a small inner room set back under a curved ceiling
【单选题】水准测量时在后视点A 上的读数为1.226，在前视点B上的读数为1.737，则AB两点之间的高差hAB 为( )。
A.
0.511
B.
-0.511
C.
1.511
D.
-1.511
【单选题】The placement of a dome over an arched alcove is a characteristic of Persian architecture, successfully adapted in the Taj Mahal to a Mogul design . ( Hint: The first paragraph contains a clue.)
A.
a complicated triangular design
B.
a design from the Muslim group that once ruled India
C.
the design of an itinerant (traveling) architect from Persia
【单选题】AIDS, the short form for “acquired immune deficiency syndrome”, is an instance of _____.
A.
pure acronyms
B.
hybrid acronyms
C.
syllabic acronyms
D.
initialisms.
【单选题】Shyness is the cause of much unhappiness for a great many people. Shy people are anxious and self-conscious; that is, they are excessively concerned with their own appearance and actions. What kind of...
A.
the characteristics of shy people
B.
the cause of shyness
C.
the questions in the minds of shy people
D.
the effect of shyness on people
【简答题】艾滋病 ()的全称是——( )Acquired Immune Deficiency Syndrome
相关题目：
【单选题】水准测量时在后视点A 上的读数为1.226，在前视点B上的读数为1.737，则AB两点之间的高差hAB 为( )。
A.
0.511
B.
-0.511
C.
1.511
D.
-1.511
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