单选题
The word "they" in "…together they threaten to confuse." (Line 3, Para. 5) refers to
A、
engineering and the liberal-arts
B、
reality and noble ideals
C、
flexibility and a value system
D、
practicality and rationality
【正确答案】
A
【答案解析】
判断指代关系。文章第五段第二行、第三行的“they”都是指代前文的“engineering and the liberal-arts。”
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