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衡中同卷·2023届 调研卷 全国卷B 理数(一)1试题试卷答案
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1.若集合A={x|log2x<3},B={x|x|≤⑤,则A∩B=A[-5,5]B.(0,5]C.(3,5][5,8)2已z(1+i)=-2i,则|之|=2i02A2B.√2C.√3D.2
Li Hu第二节(满分25分)Green realized it was an emergency. Mary might faint at any time. If she couldnt receivetimely help, she would suffer severe brain damage, or even die, which would definitely scare hertwo grandchildren. Concerned that she was in such a critical situation where every minute countedfor her life, he immediately called the hospital to find her an ambulance. After being informed ofwhat was going on, two teachers dropped everything without delay, climbed into Greens car andset off. (75 words)When Green and the other two teachers reached the family’s home less than ten minutes later,seeing what was happening, they sighed in relief. Everything was well in order. The doctors weregiving first aid to Mary, pressing on her chest. The two kids looked visibly shaken, close to tearsBeside them stood Julia, holding them in her arms and comforting them. Fortunately enough, thequick response from Julia and Green saved Marys life. When she came to herself, she was lifted tothe ambulance and rushed to the hospital. Everybodys face brightened up as the ambulance fadedaway. (75 words
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