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【多选题】
在使用相对数时,容易犯的错误为( )A.
将构成比当作率进行分析
B.
计算相对数时分母太小
C.
将构成比当作相对比看待
D.
直接用样本率或样本构成比进行比较，而不进行假设检验
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【单选题】The International Oil Pollution Prevention Certificate is valid for a period of ______. prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
one year from the date of issue
B.
four years from the date of issue prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
C.
three years from the date of issue
D.
five years from the date of issue prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
【单选题】IOＣ members stand for______.
A.
themselves
B.
their own country
C.
the International Olympic Committee
D.
nothing
【单选题】Taobao．com has begun selling tickets online for international flights， to cut the market share of Ctrip．corn and other competitors．
A.
to aim
B.
having aimed
C.
aiming
D.
being aimed
【判断题】International specialization constitutes an important basis for international trade.()
A.
正确
B.
错误
【单选题】Taobao.com has begun selling tickets online for international flights, ______ to cut the market share of Ctrip.com and other competitors.
A.
to aim
B.
having aimed
C.
aiming
D.
being aimed
【简答题】为什么Google Glass、Segway、Amazon Fire Phone都失败了?
【简答题】International trade is the exchange of capital，goods and（ ）across international borders or territories．
【多选题】An international freight forwarder should be familiar with（ ）.
A.
international trade routes
B.
location of ports
C.
pattern of international trade
D.
provisions of the letter of credit
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