It is true that there are still abundant reserves of metals which have not yet b

游客2023-11-16  27

问题 It is true that there are still abundant reserves of metals which have not yet been______, but it is necessary to take steps to ensure that alternative materials are substituted whenever possible.

选项 A、utilized
B、mobilized
C、acquired
D、cultivated

答案 A

解析 词汇题。utilize表示“利用”的意思;mobilize意为“动员”,如:Our country’s in great danger;wemust mobilize the whole nation.我们正处于严重的危险之中,我们必须把全国人民动员起来。acquire意为“获得”,如:She acquired knowledge of the English by careful study.她认真学习而精通英语。但acquire knowledge (education),不说acquire reserves;cultivate意为“培植”、“培育”。
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