皮皮学，免费搜题
登录
搜题
【判断题】
石油公司对石油化工企业来而言，决定他们讨价还价能力的最主要影响因素是产业集中度。()A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】He insisted that he _____ the best, so he insisted that he _____ the work all by himself. [ ]
A.
was; do
B.
be; do
C.
be; did
D.
had been; had done
【单选题】If he ___ that he ____ to work there, everything would be OK now.
A.
insisted, be sent
B.
insisted, was sent
C.
had insisted, be sent
D.
had insisted, was sent
【单选题】His father insisted _____ him, but he insisted he _____ nothing to do with the matter. [ ]
A.
on punishing; should have
B.
he punished; had
C.
on punishing; had
D.
he punish; should have
【简答题】电动机反转的方法 只需改变电动机旋转磁场的旋转方向,即改变输入电动机三相电源的 ( ),也就数 改变电动机任意两根引线的连接相序。
相关题目：