皮皮学，免费搜题
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【多选题】
向日葵茎的结构包括（ ）。A.
表皮
B.
皮层
C.
维管束
D.
维管射线
E.
髓
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举一反三
【单选题】I didn’t expect to () my teacher in the street yesterday
A.
refer to
B.
wok with
C.
deal with
D.
run into
【单选题】—I didn’t expect that John would be absent from my last Sunday’s birthday party. —As far as I know, he ______ to see his parents in the countryside on Sundays.
A.
goes
B.
went
C.
has gone
D.
had gone
【单选题】— Does your brother serve in the army? — No, not now. But he _______ in the army for 8 years. [ ]
A.
would serve
B.
served
C.
had served
D.
was serving
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