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问题 选择题

孙武曾率军三万打败楚国二十万大军，并在战争中撰写《孙子兵法》。孙武著兵法说明实践是 [ ]

A、认识的来源

B、认识的目的和归宿

C、检验真理的标准

D、获得知识的唯一途径

答案

答案：A

听力题

单词拼写

小题1:Kindness is one of his c_________.

小题2:How many countries does the UK c________ of?

小题3:Being e_______ to the sun is harmful to your skin.

小题4:He was a_______ of stealing.

小题5:She said that she a______ her knowledge of English by her careful study.

小题6:He has an __________(乐观的) attitude toward his future.

小题7:Exhausted, I ______（溜进）into bed and fell fast asleep.

小题8:His friends were _________ (热心的) about his theory.

小题9:Jane was writing a letter and __________(同时) Pat was watching TV.

小题10:A giant machine, always ________ (贪婪的) for more, swallows all the waste.
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选择题

已知Na2SO4和NaCl混合溶液中，Cl-的物质的量浓度是Na+的物质的量浓度的

3
5
倍，下列叙述中正确的是（　　）

A．溶液中一定有1molNa2SO4和3molNaCl

B．所带电荷数SO42-是Na+的

3
5
倍

C．SO42-与Cl-的物质的量之和等于Na+的物质的量

D．Na2SO4和NaCl的物质的量之比为1：3
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