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【单选题】
下列属于佝偻病的隐匿性体征的是A.
惊厥
B.
手足抽搐
C.
喉痉挛
D.
血清钙低于1.75mmol/L
E.
阳性
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举一反三
【单选题】Everyone has periods in their lives ______ everything seems very hard.
A.
when
B.
where
C.
which
D.
That
【简答题】LTE的协议栈根据用途分为____协议和____协议,其中____协议负责用户数据传输;____协议负责系统信令传输。
【单选题】Everyone has periods in their lives__________everything seems so hard.
A.
when
B.
where
C.
which
D.
that
【单选题】Everyone has periods in their lives ______ everything seems very hard.
A.
when
B.
where
C.
which
D.
that
【单选题】In my opinion, everyone has periods in their lives _______ everything seems very hard.
A.
when
B.
where
C.
which
D.
that
【简答题】Everyone has periods in their lives _______ everything seems so hard.
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