刚性联轴器根据结构特点可分为固定式和()两大类。
A.凸缘式
B.万向式
C.平移式
D.齿轮式
参考答案:C
He came all the way to China for knowing its culture and history ________ for making money.
A.less than
B.other than
C.better than
D.rather than
液氯贮槽泄漏应如何处理?