问题
判断题
恩格尔系数的变化，通常表明人们生活水平提高。
答案
错
恩格尔系数的变化反映人们生活水平的变化，通常情况下，恩格尔系数上升说明人们的生活水平下降，恩格尔系数下降说明人们的生活水平提高。。
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恩格尔系数的变化，通常表明人们生活水平提高。
错
恩格尔系数的变化反映人们生活水平的变化，通常情况下，恩格尔系数上升说明人们的生活水平下降，恩格尔系数下降说明人们的生活水平提高。。
Which of the following statement is NOT true of therapeutic cloning
A．"Therapeutic" cloning is used mainly for research purposes and therefore should be allowed to continue.
B．"Therapeutic" cloning is used for medical purposes and not for reproducing full human beings. C. "Therapeutic" cloning is used for replacing the diseased parts of human organs.
D．Brain cell can be used in the future to cure the Parkinson’s disease.