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【判断题】
Water motion extends all the way to the bottom in shallow-water waves.A.
正确
B.
错误
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【单选题】While doubts about the medicine’s safety have____________, interest continues to grow.
A.
dropped out
B.
fell down
C.
withdrew from
D.
faded away
【单选题】What will happen to adults if language tests are cancelled?
A.
They will be very happy to do what ever they want to do.
B.
They will devote themselves to business operations.
C.
They will spend more time and energy on their careers.
【简答题】如图所示,在平行四边形ABCD中,对角线AC,BD相交于点O,已知△BOC的周长比△AOB的周长大3,平行四边形ABCD的周长为26,则BC的长度为______ .
【简答题】如图所示，在平行四边形ABCD中，M，N分别为DC，BC的中点，已知 =c， =d，试用c，d表示 ， .
【简答题】Stepfamilies are commonplace in the United States and their number continues to grow. While stepfamilies differ widely in their make-up， they all consist of a parenting couple and children， one or mor...
【单选题】What will happen to children if they use phones and tablets before bedtime?
A.
It will prevent them from sleeping.
B.
It will help them sleep well.
C.
They will be made to feel excited
D.
Their communicative skills will be improved
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