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【简答题】
建筑石膏的化学成分是____ ,其硬化特点是:一是凝结硬化速度____,二是体积产生____ 。
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】(2013·高考浙江卷)Eye doctors recommend that a child’s first eye exam ________ at the age of six months old.
A.
was
B.
be
C.
were
D.
is
【单选题】(2013·浙江高考)Eye doctors recommend that a child's first eye exam ________ at the age of six months old.
A.
was
B.
be
C.
were
D.
is
【单选题】Eye doctors recommend that a child’s first eye exam____at the age of six months old．
A.
was
B.
be
C.
were
D.
is
【简答题】favo(u)rite
【单选题】血浆晶体渗透压下降,伴有循环血量严重不足时,将出现:( B )
A.
ADH分泌减少,尿量增多
B.
ADH分泌增多,尿量减少
C.
ADH分泌增多,尿量增多
D.
ADH分泌不变,通过肾血流量自身调节,使尿量减少
E.
ADH分泌减少,通过肾血流量自身调节,使尿量减少
【单选题】Eye doctors recommend that a child’s first eye exam ________ at the age of six months old. (2013·浙江，8)
A.
was
B.
be
C.
were
D.
is
【简答题】favo(u)r
【单选题】(2013·浙江，8)Eye doctors recommend that a child's first eye exam ________ at the age of six months old.
A.
was
B.
be
C.
were
D.
is
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