皮皮学，免费搜题
登录
搜题
【单选题】
杆系结构的几何特征是( )A.
长度远小于截面的宽度和高度，由若干杆件组成的结构。
B.
长度远大于截面的宽度和高度，由若干杆件组成的结构。
C.
长度远远小于截面的宽度和高度。
D.
长度远远大于截面的宽度和高度。
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
【简答题】党的纪律包括____、____、廉洁纪律、群众纪律、________ 和生活纪律。
【单选题】—You look upset. What’s the matter? —I had my proposal again.
A.
turning down
B.
turned down
C.
to turn down
D.
turned to
【单选题】听力原文：W：You look upset．Anything wrong? M：I failed in the physics exam again in spite of all the efforts I made． Q：What do we know about the man from the conversation? (15)
A.
He didn't work as hard as he was supposed to.
B.
He didn't pass the physics exam.
C.
He did better in an earlier exam.
D.
He found something wrong with the exam.
【简答题】设等比数列 的前 项和为 ,已知 则 的值为 ．
相关题目：