Woman: Did you find the book for your reading assignment in the library? Man: It closed be
A.He didn"t get the book he needed.
B.He had no idea where the book was.
C.The library is closed on weekends.
D.He was not allowed to check out the book.
A.He didn"t get the book he needed.
B.He had no idea where the book was.
C.The library is closed on weekends.
D.He was not allowed to check out the book.
For a pair of standard involute helical gears,,,,,,. Find: (1) reference circle, addendum circlededemdum circleand center distance. (2) normal pitchand transverse pitch. (3) transverse meshing angleand contact ratio.
A、Seeking commiseration
B、Showing one’s hand
C、No precedents
D、Adjournment
A.She thought there were no tickets left for the show.
B.She thought the seats on the left side were fully occupied.
C.The show was planned a long time ago.
D.The audience were deeply impressed by the show.
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