--- An explosion at a coal mine killed at least 62 workers and left another 13 missing. --- Yes, _________ news came as ________ shock to us all. A. the; the B. /; / C. /; a D. the; a 答案:D本题考查冠词用法。句意:——煤矿发生爆炸,炸死了至少62人,还有另外的13人失踪。——消息传来对我们来说非常吃惊。前空消息因为上面已经提到具体内容故特指,后空为抽象名词具体化,意思:震惊事。
下列函数中,不满足f(2x)=2f(x)的是( ) A.f(x)=|x| B.f(x)=x-|x| C.f(x)=x+1 D.f(x)=-x