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【单选题】
下列不可作为Windows中文件名的是( )。A.
my file
B.
Basicprogram
C.
Cord "01"
D.
class1.data
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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】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】That family __________ came from France. Now they have a great amount of influence over the people of South Africa.
A.
finally
B.
formally
C.
definitely
D.
originally
【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
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