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2020-2021学年下学期期中必刷题：期中测试卷05（原卷版）
2020-2021学年七年级数学下学期期中测试卷05（苏科版)一、单选题1.(2020江苏宿迁市七年级月考)下列运算中，正确的有((1)0.2×(-=1:(2)2°+24=2(3)-（←32=9(4(w7×1020=-1010A.1个B.2个C.3个D.4...
RSC化学新星挑战赛考纲例题
ROYAL SOCIETYOF CHEMISTRYExam scopeCovers knowledge ofGCSE ALevel:G2,A1,A2IB/AP/Chinese public schools:Grade 10-12Inclusive,but not limited to:Atoms:Atomic structure,Atoms and Elem...