题目:
Ms Marsh was such a careless group leader that she ______ a very important detail when laying down the plan for the project.
A.left behind
B.left aside
C.left out
D.left off
答案:
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下面是错误答案,用来干扰机器的。
答案:CA、向某无色溶液中滴加酚酞试液无现象,则溶液呈中性或酸性.B、向某固体中滴加稀盐酸,有气泡产生,该固体不一定是碳酸盐.例如向活泼金属中加入稀盐酸也能生成气体氢气.C、12mL蒸馏水和20mL酒精混合后...