题目内容
Three ________ witnessed the traffic accident.
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It’s time for you to make the final decision. Don’t ________ any more.
A series of accidents ________ the whole nation.
devotion as well turn a blind eye todecade modelmaterialist contentdesignate for the sake of be in danger1) He is a great writer, and a great thinker ________.2) You should stop smoking ____________ your health.3) Great changes have taken place in the past ________ in this country.4) If we allow pollution to continue, we human beings will ____________.5) Drivers will be heavily fined if they run past red lights. Now they dare not ______________ this traffic regulation.6) This area has been __________ as a National Park.7) Mary is a fashion ________ and her beauty on the T-stage attracts a large audience.8) A government official shouldn’t be interested in ________ lure.9) The scientist ________ all his life to the scientific research.10) The parents seemed ________ with their child’s examination results.
模型中引入与解释变量存在线性有关的变量,会导致参数的OLS估计量方差()
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