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【单选题】
改变直流电机励磁电流的方向,就改变主磁极极性,也就改变了( )方向。
A.
转矩
B.
磁场
C.
转矩和磁场
D.
无答案
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【单选题】初孕妇,25岁,第一胎,宫内孕28周,在产科门诊进行产前检查,正在进行骨盆骶耻外径的测量,护士告诉该径线测量在产科有重要意义。 测量时护士指导孕妇采取的正确体位是
A.
取左侧卧位，左腿伸直，右腿屈曲
B.
取左侧卧位，右腿伸直，左腿屈曲
C.
取右侧卧位，左腿伸直，右腿屈曲
D.
两腿屈曲，双手抱膝
E.
伸腿仰卧位
查看完整题目与答案
【单选题】对于均匀弯曲的受弯构件,当( )时,可按下式简化公式计算整体稳定系数。
A.
λy≤120εk
B.
λy≤100εk
C.
λy≤80εk
D.
λy≤150εk
查看完整题目与答案
【单选题】According to the passage, which of the following statements is true?
A.
Einstein invented the concept of speed of light.
B.
The Waste Land is a great work of literature.
C.
Edison made one major invention every 10 days.
D.
Mozart composed something every day even when he was sick.
查看完整题目与答案
【单选题】— Do you know ? — In the 6th century. [     ]
A.
who is the abacus invented
B.
when the abacus is invented
C.
when was the abacus invented
D.
when the abacus was invented
查看完整题目与答案
【单选题】The island 'Celtic' identity was invented in the 18th century.
A.
Y
B.
N
C.
NG
查看完整题目与答案
【单选题】测量骶耻外径时护士指导孕妇采取的正确体位是
A.
取左侧卧位，左腿伸直，右腿屈曲
B.
取左侧卧位，右腿伸直，左腿屈曲
C.
取右侧卧位，左腿伸直，右腿屈曲
D.
两腿屈曲，双手抱膝
查看完整题目与答案
【简答题】短文填空。 Wood-block printing was invented sometime between the 4th and the 7th (1) c______ in China. The earliest book that we have was (2) p______ in 868 and was found in a Dunhuang cave. Wood-block pri...
查看完整题目与答案
【单选题】Aspirin was invented in ______.
A.
the 20th century
B.
the 19th century
C.
ancient Greece
D.
ancient Germany
查看完整题目与答案
【单选题】下列关于坐位体前屈测量中, 正确的说法是( )。
A.
两手食指尖同时向前推动游标
B.
两臂猛然用力向前推动游标
C.
膝关节弯曲
D.
仪器上靠近身体的一面计为负值，远离身体的一面计为正值
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【判断题】秦汉时期时赵武灵王下令实行"胡服骑射",改为上衣下裤、行动方便的胡服。
A.
正确
B.
错误
查看完整题目与答案
相关题目：
【单选题】初孕妇,25岁,第一胎,宫内孕28周,在产科门诊进行产前检查,正在进行骨盆骶耻外径的测量,护士告诉该径线测量在产科有重要意义。 测量时护士指导孕妇采取的正确体位是
A.
取左侧卧位，左腿伸直，右腿屈曲
B.
取左侧卧位，右腿伸直，左腿屈曲
C.
取右侧卧位，左腿伸直，右腿屈曲
D.
两腿屈曲，双手抱膝
E.
伸腿仰卧位
查看完整题目与答案
【单选题】对于均匀弯曲的受弯构件,当( )时,可按下式简化公式计算整体稳定系数。
A.
λy≤120εk
B.
λy≤100εk
C.
λy≤80εk
D.
λy≤150εk
查看完整题目与答案
【单选题】According to the passage, which of the following statements is true?
A.
Einstein invented the concept of speed of light.
B.
The Waste Land is a great work of literature.
C.
Edison made one major invention every 10 days.
D.
Mozart composed something every day even when he was sick.
查看完整题目与答案
【单选题】— Do you know ? — In the 6th century. [     ]
A.
who is the abacus invented
B.
when the abacus is invented
C.
when was the abacus invented
D.
when the abacus was invented
查看完整题目与答案
【单选题】The island 'Celtic' identity was invented in the 18th century.
A.
Y
B.
N
C.
NG
查看完整题目与答案
【单选题】测量骶耻外径时护士指导孕妇采取的正确体位是
A.
取左侧卧位，左腿伸直，右腿屈曲
B.
取左侧卧位，右腿伸直，左腿屈曲
C.
取右侧卧位，左腿伸直，右腿屈曲
D.
两腿屈曲，双手抱膝
查看完整题目与答案
【简答题】短文填空。 Wood-block printing was invented sometime between the 4th and the 7th (1) c______ in China. The earliest book that we have was (2) p______ in 868 and was found in a Dunhuang cave. Wood-block pri...
查看完整题目与答案
【单选题】Aspirin was invented in ______.
A.
the 20th century
B.
the 19th century
C.
ancient Greece
D.
ancient Germany
查看完整题目与答案
【单选题】下列关于坐位体前屈测量中, 正确的说法是( )。
A.
两手食指尖同时向前推动游标
B.
两臂猛然用力向前推动游标
C.
膝关节弯曲
D.
仪器上靠近身体的一面计为负值，远离身体的一面计为正值
查看完整题目与答案
【判断题】秦汉时期时赵武灵王下令实行"胡服骑射",改为上衣下裤、行动方便的胡服。
A.
正确
B.
错误
查看完整题目与答案