①遗存稻谷 ②人面鱼纹彩陶盆 ③干栏式房屋 ④半地穴式圆形房屋
A:①②
B:③④
C:②③
D:①③
4.6×0.99=____×____-____×____
4.6×0.99=4.6×1-4.6×0.01
① 78−35+18−25 =____ ② 56÷710×57 =____
③ (1112−16)÷118×13 =____ ④ 14×1439−1439÷14 =____
⑤ 119÷3225−(32.4−13×0.25)×12 =____
⑥ 2012−614×252+123÷416 =____