题目

She was so angry at ______he was doing ______she walked out without a word.A. what; that B. that ; what C. what ; what D. that ; that 答案:【答案】A【解析】句意:她对他所做的事非常生气,一句话也没说就走了出去。考查宾语从句和结果状语从句。本句整体是so…that结构,表示“如此……以致于……”,引导结果状语从句,后空需用that引导。同时,what he was doing又做了介词 at的宾语,是宾语从句;而设空处做从句动词do的宾语,that无实如果数据x,x,…,x的平均数为,方差为,则2x+3,2 x+3,…,2 x十3的平均数和方差分别为 A.,                           B.2+3,4 C.2 +3,2                        D.2+3,4+9
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