Tom is a 12’yearold boy. His father sells meat and has a big shop in the city center.The shop is quite (11) and there are many customers every day, Tom usually helps his father in the shop on weekends. He does .(12) work, for example, cleaning the floor and (13) meat onto the shelf(架子).One Saturday afternoon when there (14) any meat left on the shelf.Tom's father (15) him to carry some more from another room. Tom ran to the room quickly and(16) the meat was on a high shelf. He couldn't reach it, because he was too (17 ). 'What could he do? Tom thought (18) a moment and then he had a good idea. He took two boxes and put one on the top of (19) . Then he (20) 0n them.At last, he got the meat down!
( )11.
A.well
B.busy
C.quiet
第1题:
The ____________ shoes were covered with mud, so I asked them to take them off before they got into __________ car.
A. girl’s; Tom’s
B. girls’; Toms’
C. girls’; Tom’s
D. girl’s; Toms’
第2题:
A、is⋯in
B、has been⋯for
C、uses⋯with
D、sells⋯to
第3题:
4、基于教学视频中的供应商零件数据库,能正确查询出“没有使用天津供应商生产的红色零件的工程号”的关系代数表达式是()。
A.πJNO(J) - πJNO (σCITY='天津' (S) ∞SPJ ∞σCOLOR='红' (P))
B.πJNO (σCITY≠'天津' (S) ∞SPJ ∞σCOLOR≠'红' (P))
C.πJNO(J) - πJNO (σCITY='天津'∧COLOR='红'(S∞SPJ ∞P))
D.πJNO (σCITY≠'天津' ∧COLOR≠'红' (S∞SPJ ∞P))
第4题:
A、three-years old
B、three-year-old
C、three-year old
第5题:
12.
A. My
B. He
C. His
第6题:
基于教学视频中的供应商零件数据库,能正确查询出“没有使用天津供应商生产的红色零件的工程号”的关系代数表达式是()。
A.πJNO(J) - πJNO (σCITY='天津' (S) ∞SPJ ∞σCOLOR='红' (P))
B.πJNO (σCITY≠'天津' (S) ∞SPJ ∞σCOLOR≠'红' (P))
C.πJNO(J) - πJNO (σCITY='天津'∧COLOR='红'(S∞SPJ ∞P))
D.πJNO (σCITY≠'天津' ∧COLOR≠'红' (S∞SPJ ∞P))