题目

活细胞中合成酶的原料是()     A．脂肪酸          B．氨基酸           C．核苷酸         D．氨基酸或核苷酸 答案：D根据句意，在答题卡对应题号的横线上，写出括号内所给单词的适当形式。【1】Make sure all the lines are connected ____(proper) before the computer is turned on.【2】I’ve never seen such a(an) ____ (tidy) room like yours. Clean it up right now.【3】Since the weather these days is not that good, I am considering ____(cancel) the travel plan.【4】She is such a born ____(lead) that she has made a great difference to the party.