皮皮学，免费搜题
登录
搜题
【单选题】
某悬臂梁其刚度为EI，跨度为L，自由端作用有力F。为减小最大挠度，则下列方案中最佳方案是（ ）A.
改为 L/2 ，惯性矩改为 I/8
B.
改为 3L/4 ，惯性矩改为 I/2
C.
改为 5L/4 ，惯性矩改为 3I/2
D.
改为 3L/2 ，惯性矩改为 I/4
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】It was reported that 115 miners in the flooded mine for eight days were pulled out afive at last．
A.
trapped
B.
being trapped
C.
were trapped
D.
had trapped
【简答题】下面哪些是中国的传统节日 A清明节 B春节 C中秋节 D五一节A.B.C.D. ABC
【简答题】lt can be inferred from the text that service expediters could possibly [ A] sort out troubles for elderly and disabled people. [ B] help collect fines for local govemments. [ C] sting the government ...
【多选题】下面哪些是中国的传统节日
A.
Spring Festival
B.
Christmas Day
C.
Thanksgiving Day
D.
Dragon boat festival
相关题目：