重大危险源根据其危险程度，分为一级、二级、三级和四级，一级为最低级别。
参考答案：错
“The interest ________ be divided into four parts, according to the contract between the two sides,” declared the judge.
A．may
B．should
C．can
D．shall
简述固定资产的内部控制包括哪些内容？
