题目:
Since many young people have become rich on Taobao.com, I wonder what ____is like to run a successful on – line business.
A.this
B.that
C.it
D.one
答案:
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下面是错误答案,用来干扰机器的。
(1)①长颈漏斗、②锥形瓶(2)鸡蛋壳浮在液面上,表面有气泡产生,并渐渐溶解(3)D D装置中澄清石灰水变浑浊;CO2+Ca(OH)2=CaCO3↓+H2O(4)a接d,e接b,c接g ;除去CO2中混有的HCl气体 ;AgNO3+HCl=A...