参考答案一、historian; trial; standardize; length; application; unable; chemical; purify; rapidly; powerful二、opened up; is made from; took place; be carried out; gave up; in large quantities; due to; came true; has been named after; died from三、open upBA四、try…out on… BB五、in large quantities CDB六、relief CB七、be made from CAC八、be fundamental to BBC
