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问题 选择题

中国近代的铁路建设因顽固派的愚昧与阻挠，在曲折中发展起来了。其中第一条由中国人自办的商业运营的铁路是 [ ]

A．吴淞铁路

B．唐胥铁路

C．京张铁路

D．京汉铁路

答案

答案：B

填空题


Directions:This section consists of three groups of pairs listed in two columns, A and B. You are to match the one marked 1) ,2), 3 ) ,4) or 5) in Column A with the one marked a, b, c, d or e in Column B. One point is given to each pair you match.
1) ______ the Direct Method
2) ______ the Audiolingual Method
3) ______ the Oral Approach
4) ______ the Communicative Approach
5) ______ the Cognitive Approach
a) cognitive psychology and transformational grammar
b) Notional Syllabus or some other communicatively organized syllabus
c) language acquisition and associationist psychology
d) British "structuralism"
e) structural linguistics
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选择题

下列推断或表述正确的是                  （   ）

A．分别将体积各为1L的1mol/L NaCI溶液和1mol/L的NaF溶液加水稀释至100L，两溶液离子总数相等

B．将pH =a的醋酸溶液稀释100倍，稀释液pH=b，则b=a+2

C．0.2mol/L的盐酸与0.05mol/L的Ba（ OH）2溶液等体积混合，混合液pH =1

D．向1L，0.3mol/L的NaOH溶液缓缓通入CO2气体，至溶液质量增加8.8g，则溶液中：2c（Na+）    3[c（HCO3－）+c（CO32－）+c（H2CO3）]
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