皮皮学，免费搜题
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【单选题】
有一堆螺丝和螺母，若一个螺丝配两个螺母，则多10个螺母;若1个螺丝配3个螺母，则少6个螺母。那么其中有多少个螺丝?A.
16
B.
22
C.
42
D.
48
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皮皮学刷刷变学霸
举一反三
【单选题】We are trying to improve education today ______ our children can meet the challenges of tomorrow.
A.
so that
B.
where
C.
only if
D.
as to
【简答题】Children are____to meet with setbacks (挫折) as they grow up,so their parents don’t have to worry about it. A．possible B．due C．necessary D．bound
【简答题】定时器可以实现自动重装入的是模式 。
【单选题】Children are ________ to meet with challenges as they grow up so parents don't have to worry about it.
A.
possible
B.
due
C.
probable
D.
bound
【单选题】Children are ____ to meet with setbacks as they grow up, so their parents don’t have to worry about it．
A.
possible
B.
due
C.
necessary
D.
bound
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