在职攻硕英语考试

根据网考网考试中心的统计分析，以下试题在2019/7/23日在职攻硕英语习题练习中，答错率较高，为：49%
【单选题】 Why were cracks in old houses not a big concern
A．Because indoor cleanness was not emphasized.
B．Because energy used to be inexpensive.
C．Because environmental protection was given top priority.
D．Because they were technically unavoidable.

网考网参考答案：B，答错率：49%
网考网试题解析：
只要看清第四段第二行就可选对答案。 查看试题解析出处>>