题目

TheSanluGroup is reported, ______ to news from the Internet, to have crashed. A.accords         B.according         C.accorded         D.to accord   答案:B  考查固定词组。according to “根据,据……所说”。according tonews from the Internet在句中作插入语。   若变量满足约束条件的最大值和最小值分别为M和m,则M-m= A.8       B.7        C.6          D.5
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