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【单选题】
正垂面在W面上的投影（）。A.
反映
B.
集聚为点
C.
集聚为线
D.
反映几何形状，较小
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反馈参考答案：
举一反三
【单选题】-I heard you had left our Disneyland admission coupons at home. Yes. But we were lucky not to leave our visas. __________, we would have had to return home.
A.
Otherwise
B.
And
C.
However
D.
So
【简答题】旅游电子商务期末考核 小论文 :就以下主题(题目)任选其一,写作一篇小论文,字数20 00 以上。 1. 旅游电子商务的发展趋势 2. 旅游电子商务的模式变化 3. 旅游电子商务的安全 4. 旅游电子商务的网络营销
【单选题】---I heard you had left our Disneyland admission coupons at home. ---Yes. But we were lucky not to leave our visas. __________, we would have had to return
A.
Otherwise
B.
And
C.
However
D.
So
【单选题】I have decided to go on holiday ________
A.
with myself
B.
of my own
C.
lonely
D.
on my own
【简答题】业务预算是全面预算编制的起点，因此专门决策预算应当以业务预算为依据。()
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