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【简答题】
现有①铁片②NaNO 3 ③NH 3 ·H 2 O ④FeCl 3 ⑤酒精⑥H 2 S其中属于电解质的是（填写序号） ，属于非电解质的是 ，属于强电解质的是 ，属于弱电解质的是 。写出其中可发生水解的物质的水解离子方程式 。
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【单选题】The only language _____ is easy to learn is the mother tongue.
A.
which
B.
that
C.
/
D.
it
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【单选题】...use incendiary language to express views that have the potential not only to widen the racial divide, but views that denigrate both the greatness and the goodness of our nation...
A.
watch
B.
expect
C.
defame
D.
portray
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