土的干密度也就是单位体积()。
A.水加土粒质量
B.水质量
C.土粒质量
D.土粒比重
参考答案:C
An analyst gathered the following data about a company:
The company’s return on equity:()
A. decreased because the company’s profit margin fell.
B. increased because the company’s leverage multiplier rose.
C. increased because the company’s asset turnover increased.
操作工操作设备时应做到“四懂”的内容是()、()、()和()。