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【多选题】
参加投标时必须做好哪些工作()。A.
认真研究招标文件
B.
确定适当的价格
C.
提供投标保证金
D.
认真制作投标文件
E.
正确及时递送投标文件
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反馈参考答案：
举一反三
【单选题】She wants to be a ping-pong player, _____ she likes to play ping-pong. [ ]
A.
so
B.
because
C.
to
D.
for
【单选题】She is going to take ________ lessons because she wants to be an actress. [ ]
A.
musician
B.
dancing
C.
acting
D.
piano
【单选题】Jane will have to _____ her piano practice a long time if she wants to be a professional concert performer. [ ]
A.
set up
B.
add up
C.
keep up
D.
hold up
【单选题】She is going to take _______lessons because she wants to be an actress. [ ]
A.
music
B.
dancing
C.
acting
D.
basketball
【简答题】商品学研究的中心内容
【单选题】She likes ,so she wants to be a .
A.
cooking,cook
B.
cook,cooking
C.
cooking,cooker
D.
cook,cook
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