皮皮学，免费搜题
登录
搜题
【判断题】
从赤道处出发,沿着一定的方位角出发的大地线,一定不会回到原来的点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】The manager came over and asked the customer how .
A.
did the quarrel came about
B.
the quarrel had come about
C.
had the quarrel come about
D.
had the quarrel came about
【简答题】In our company, great changes (take place) ______ since the new manager came.
【单选题】图示两均质细杆OA与AB铰接于A,在图示位置时,OA杆绕固定轴O转动的角速度为ω,AB杆相对于OA杆的角速度亦为ω,O、A、B三点位于同一铅直线上。已知OA和AB两杆的质量均为m,它们的长度均为L,则该系统此时对O轴的动量矩大小为I O 为
A.
I O =21mL 2 ω/6;
B.
I O =11mL 2 ω/4;
C.
I O =8mL 2 ω/3;
D.
I O =5mL 2 ω/3.
【单选题】图示两均质细杆 OA 与 AB 铰接于 A ,在图示位置时, OA 杆绕固定轴 O 转动的角速度为 w , AB 杆相对于 OA 杆的角速度亦为 w , O 、 A 、 B 三点位于同一铅直线上。已知 OA 和 AB 两杆的质量均为 m ,它们的长度均为 L ,则该系统此时对 O 轴的动量矩大小 L O 为 ( ) 。
A.
L O =21 mL 2 w /6
B.
L O =11 mL 2 w /4
C.
L O =8 mL 2 w /3
D.
L O =5 mL 2 w /3
【单选题】The manager came over and asked the customer how ______.
A.
did the quarrel came about
B.
the quarrel had came about
C.
had the quarrel came about
D.
had the quarrel come about
【单选题】The manager promised to have my complaint ______.
A.
looked through
B.
looked into
C.
looked over
D.
looked after
【单选题】图示两均质细杆OA与AB铰接于A，在图示位置时，OA杆绕固定轴O转动的角速度为ω，AB杆相对于OA杆的角速度亦为ω，O、A、B三点位于同一铅直线上。已知OA和AB两杆的质量均为m，它们的长度均为L，则该系统此时对O轴的动量矩大小为G O 为（）
A.
A
B.
B
C.
C
D.
D
相关题目：