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【简答题】
关系模式的三类完整性约束条件分别是 ______ 、参照完整性和用户自定义的完整性。
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参考答案:
举一反三
【单选题】下列可使心输出量增加的情况是
A.
心迷走神经兴奋时
B.
颈动脉窦压力升高时
C.
动脉血压升高时
D.
使用去甲肾上腺素时
E.
使用肾上腺素时
【单选题】We must ourselves to the changed conditions.
A.
adapt
B.
adaptable
C.
adaptation
D.
adapting
【简答题】adapt, adaptable, adaptation a. We must ourselves to the changed conditions. b. Humans are infinitely .
【简答题】It’s time to change Here is some advice on how to be healthy. In tells us what we must do if we want to keep ourselves fit. "Early to bed, early to rise, makes a man healthy, wealthy and wise." is an...
【简答题】adapt, adaptable, adaptation a. We must _ ourselves to the changed condition. b. Human are infinitely _.
【单选题】We must ourselves to the changed conditions.
A.
adapt
B.
adaptable
C.
adaptation
【单选题】使心输出量增加,动脉血压升高的是:
A.
交感缩血管纤维
B.
交感舒血管纤维
C.
副交感舒血管纤维
D.
心迷走神经
E.
心交感神经
【单选题】We must ()ourselves to the changed conditions
A.
Adapt
B.
Adaptable
C.
Adaptation
【单选题】建筑物的重置价是决定建筑物价格的最基本因素。( )
A.
正确
B.
错误
【单选题】The medicolegal standard of care represents that level of care we feel we must give to try to protect ourselves legally from malpractice     .
A.
procedure
B.
allegation
C.
liability
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