考博考试

根据网考网考试中心的统计分析，以下试题在2018/6/21日考博习题练习中，答错率较高，为：53%
【单选题】Which of the following is a true statement
A．Since 1866, use of the metric system in the U.S. has been increasing.
B．Since 1988, the metric system has been the preferred system of weights and measures for U.S. trade and life.
C．In 1988,Congress passed a law to prevent the use of theCustomary System in trade and commerce.
D．OnDeC、23, 1975, Pres. Gerald R. Ford signed the MetricConversionAct of 1975 to adopt the metric system in the U. S.
网考网参考答案：A，答错率：53%
网考网试题解析：
第三段第一句指出"Since that time，use of the metric system in the U．S．has slowly and steadily increased"，故选项A正确。选项B和D均与文章的叙述有出入，而选项C在文中并未提及。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>