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【简答题】
将E-R图中的实体和联系转换为关系模型中的关系,这是数据库设计的过程中【 】设计阶段的任务。
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【判断题】不管液体是在运动状态还是静止状态,都可能显示粘性。
A.
正确
B.
错误
【单选题】Which of the following statements about the research is CORRECT?
A.
The research has found that caffeine levels in the Pacific Ocean have risen.
B.
The research proved that cafes and coffeehouses caused the pollution.
C.
The research is carried out by researchers from Poland, U.S. and Canada.
D.
The research starts a series of studies on Ocean water.
【判断题】我们要抵制职业腐败,倡导廉洁从职
A.
正确
B.
错误
【判断题】不管液体是在运动状态还是静止状态,都可能显示黏性。
A.
正确
B.
错误
【单选题】Listen! the baby___ in the next room。
A.
crying。
B.
cried。
C.
is crying。
D.
cries。
【单选题】Listen! The baby ____ in the next room.
A.
crying
B.
cried
C.
is crying
【单选题】Listen! The baby()in the next room.
A.
cries
B.
cried
C.
is crying
【单选题】Listen!The baby____in the room.
A.
crying
B.
cried
C.
is crying
D.
cries
【单选题】Listen! The baby ____ in the next room.
A.
cry
B.
is crying
C.
cries
D.
cried
【单选题】Much has been written on the virtues of natural childbirth, but little research has been done to______these virtues.
A.
confirm
B.
consult
C.
confess
D.
convey
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