题目内容
（请给出正确答案）
根据下面材料回答下列各题。 2007 ～2010年中国服务贸易进出口分项目情况 (单位：亿美元)
2010年我国服务贸易进出口总额比上年增长了（）。
A.21．5%
B.26．4%
C.32．4%
D.41．6%
答案
B
2010年中国服务贸易进出口总额为(1702．5+1921．7)亿美元，2009年为(1286．0+1581．1)亿美元，则所求为(1702．5+1921．7)÷(1286．0+1581．1)－1=3624．2÷2867．1－1≈36÷29－1=7÷29=24．1%．由估算过程可知，该结果略大于24．1%，B符合。
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更多“根据下面材料回答下列各题。 2007 ～2010年中国服务贸…”相关的问题
根据内容，回答下列各题。
.
A.centered
B.depended
C.based
D.acted
根据以下资料，回答下列各题。
请在第_____处填上正确答案。
A.fortunately
B.lastly
C.lately
D.finally
根据以下资料，回答下列各题。
请在第_____处填上正确答案。
A.fortunately
B.lastly
C.lately
D.finally
根据以下资料，回答下列各题。
请在第_____处填上正确答案。
A.have
B.made
C.had
D.crashed
根据以下资料，回答下列各题。
The earliest immigrants to North America found Indians already living there．The Indians numbered about 500,000 at that time．Their society was a primitive society, but they lived peacefully and welcomed the white strangers to the land．However, these early immigrants from Europe didnt want to share the land with the natives．They killed off many of the Indians, seized their land or pushed them off to lands farther away．Today the Indians, not more than half a million, live in poverty and misery on the land on which they were once masters．
The earliest immigrants were the Spanish, who settled in the southern part of what is now the US．The next large group were the English, after the English came the French, Dutch, Irish, Germans, and other nationality groups, mostly European．
Another early group to arrive were the Negroes．But they were brought in as slaves from Africa．They didnt win freedom till generations later．
Who were the earliest people living in North America？
A.The Spanish．
B.The English．
C.The Negroes．
D.The Indians．
根据以下各题的要求，在常用金属材料中选用合适的牌号，并回答有关问题：
20，20CrMnTi，45，40Cr，38CrMoAl，65Mn，60Si2Mn，CCr15，9SiCr，CrWMnCr12MoV，W18C14V，W6M05C14V2，2Cr13
