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【多选题】
经营活动净现金流小于零所代表的含义，可能是（）A.
企业经营所带来的现金流入不足以支付因经营活动而引起的现金流出
B.
若企业处于建设期或经营初期，由于项目建设，市场开拓等因素导致，可认为是发展过程中不可避免的正常状态
C.
若是企业正常生产期内发生，则可判断企业经营活动产生现金流量的质量不高
D.
表明企业很可能正处于扩张期
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【单选题】After _____ the league, he often helps others. [ ]
A.
joining in
B.
joining
C.
joined
D.
joined in
【多选题】子程序调用需注意()
A.
子程序调用语句要求单独成段
B.
主、子程序中的G、M、F和S功能代码具有相互维承性
C.
最好不要在刀具补偿状态下调用子程序
D.
M98和M99必须成对出现，且不在同一编号的程序段内
【多选题】Which are the roles for the UNICEF Ambassador of Goodwill?
A.
He makes public appearances and talks.
B.
He pays visits to troubled regions.
C.
He takes use of his political access to advocate UNICEF causes.
D.
He attracts attention from celebrities.
【单选题】The following are job benefits by joining Toastmasters EXCEPT______.
A.
becoming familiar with various means of communication
B.
learning how to deliver messages in an organized way
C.
becoming aware of audience expectations
D.
learning how to get along with friends
【单选题】两束相干光相遇后产生干涉相消、干涉相长的条件是?
A.
两束相干光的相位差为 的奇数倍时干涉相消，偶数倍时干涉相长
B.
两束相干光的相位差为 的奇数倍时干涉相长，偶数倍时干涉相消
C.
相位为零
D.
频率差为零
【简答题】UNICEF is joining with a nonprofit group to bring 【D1】______ programs to more women and children in five countries. UNICEF, United Nations Childrens Fund, will work with Family Health Internationa...
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