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【单选题】
沟通所需要的最基本媒介是A.
A人体
B.
B语言
C.
C感情
D.
D环境
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【简答题】下列气体哪个属于刺激性气体（ ）。
【单选题】A __________ statement is a general term for a personalized financial record that regularly informs a recipient about the status of his or her account. It is generally mailed to the recipient on or ne...
A.
instantly
B.
weekly
C.
monthly
D.
daily
【单选题】Arbitrage______.
A.
is a general economic term for buying something where it is cheap and selling it where it is dear
B.
keeps exchange rates consistent across markets
C.
has been outlawed by the International Monetary Fund
D.
cannot occur where there is a forward exchange market
E.
both A and B
【简答题】It is a general term for all the statistics used to describe the typical value of a variable.
【单选题】肉桂的主产地是（）
A.
圆锥形或羊角状，表面灰黄色或棕褐色
B.
不规则的团块或长圆形，表面灰黑或灰棕色
C.
圆柱形，略弯曲，表面灰棕色至暗棕色，有节、芽、叶柄基和根痕
D.
扁圆柱形，表面灰黄色，外皮横向断裂而露出木部，形似连珠
E.
根茎粗短，下生根数条，表面棕红或暗棕红色
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