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【单选题】
ψ=90 ° 时,同步发电机的电枢反应的性质是( ), 合成磁场(     ),发电机端电压(      )。
A.
直轴去磁电枢反应  减少    减少
B.
直轴去磁电枢反应  减少  增加
C.
直轴助磁电枢反应    增加   增加
D.
直轴助磁电枢反应    增加  减少
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举一反三
【单选题】He got up very late, _________ his school bag, and _________ to his school at once.
A.
taking; dashing
B.
took ; dashing
C.
taking ; dashed
D.
took ; dashed
查看完整题目与答案
【单选题】My school bag is larger than _________.
A.
she
B.
her
C.
hers
D.
her’s
查看完整题目与答案
【单选题】按照人体的器官功能系统阐述正常人体器官的形态结构、生理功能及其生长发育规律的科学称
A.
局部解剖学
B.
断层解剖学
C.
系统解剖学
D.
X线解剖学
E.
机能解剖学
查看完整题目与答案
【单选题】You can't _____ the broken bag to school. [     ]
A.
take
B.
took
C.
taking
查看完整题目与答案
【单选题】-- _________ --The school bag is mine.
A.
What is it?
B.
Is the school bag yours?
C.
Whose school bag is it?
D.
Is it a school bag?
查看完整题目与答案
【判断题】概念:按照人体的器官功能系统(如运动系统、消化系统和呼吸系统等)阐述正常人体器官的形态结构、生理功能及其生长发育规律的科学。
A.
正确
B.
错误
查看完整题目与答案
【单选题】He went to school without _____ his school bag. [     ]
A.
take
B.
takes
C.
taking
查看完整题目与答案
【简答题】Sheila bought a new lunch bag for school. On the way to school, she looked inside. She hoped that a new lunch bag meant something new for lunch, 16 she found the same lunch as always---a sandwich. Whe...
查看完整题目与答案
【判断题】液体的压缩性和热膨胀性都很小,气体与液体相同。
A.
正确
B.
错误
查看完整题目与答案
【单选题】I can buy _______ and _______. . C. T-shirt; school bag
A.
a T-shirt; school bag
B.
a T-shirt; a school bag
C.
T-shirt; school bag
查看完整题目与答案
相关题目：
【单选题】He got up very late, _________ his school bag, and _________ to his school at once.
A.
taking; dashing
B.
took ; dashing
C.
taking ; dashed
D.
took ; dashed
查看完整题目与答案
【单选题】My school bag is larger than _________.
A.
she
B.
her
C.
hers
D.
her’s
查看完整题目与答案
【单选题】按照人体的器官功能系统阐述正常人体器官的形态结构、生理功能及其生长发育规律的科学称
A.
局部解剖学
B.
断层解剖学
C.
系统解剖学
D.
X线解剖学
E.
机能解剖学
查看完整题目与答案
【单选题】You can't _____ the broken bag to school. [     ]
A.
take
B.
took
C.
taking
查看完整题目与答案
【单选题】-- _________ --The school bag is mine.
A.
What is it?
B.
Is the school bag yours?
C.
Whose school bag is it?
D.
Is it a school bag?
查看完整题目与答案
【判断题】概念:按照人体的器官功能系统(如运动系统、消化系统和呼吸系统等)阐述正常人体器官的形态结构、生理功能及其生长发育规律的科学。
A.
正确
B.
错误
查看完整题目与答案
【单选题】He went to school without _____ his school bag. [     ]
A.
take
B.
takes
C.
taking
查看完整题目与答案
【简答题】Sheila bought a new lunch bag for school. On the way to school, she looked inside. She hoped that a new lunch bag meant something new for lunch, 16 she found the same lunch as always---a sandwich. Whe...
查看完整题目与答案
【判断题】液体的压缩性和热膨胀性都很小,气体与液体相同。
A.
正确
B.
错误
查看完整题目与答案
【单选题】I can buy _______ and _______. . C. T-shirt; school bag
A.
a T-shirt; school bag
B.
a T-shirt; a school bag
C.
T-shirt; school bag
查看完整题目与答案