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【简答题】
竖式计算． 216×4= 480×5= 805×6= 625×6=
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反馈参考答案：
举一反三
【单选题】If you eat this kind of plant, you ____ very sick. [ ]
A.
are
B.
were
C.
will be
D.
have been
【单选题】How this kind of plant can be ____ in a special way is still unknown to us.
A.
kept away
B.
kept out
C.
kept alive
D.
kept off
【简答题】简要说明负需求的几种情况。
【单选题】If we don’t take some measures to protect this kind of plant, it will ____ soon.
A.
die out
B.
die down
C.
die from
D.
die of
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