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In order to know a foreign language thoroughly(完全地), four things are necessary. First, we must understand the language when we hear it spoken. Secondly, we must be able to speak it ourselves, correctly with confidence(自信) and without hesitation(犹豫). Thirdly, we must be able to write it. Finally, we must be able to make sentences that are correct in grammar.

There is no short way to succeed in language learning. A good memory(记忆) is a great help, but it is not enough only to memorize the rules from a grammar book. It is no much use learning by heart long lists(一览表) of words and their meanings, studying the dictionary and so on. We must learn by using the language. If we are pleased with a few rules we have memorized, we are not really learning the language. We must "Learn through use". Practice is important. We must practice speaking and writing the language whenever(无论何时) we can.

小题1:The most important things to learn a foreign language are________.

A．understanding and speaking

B．hearing, speaking, reading and writing

C．writing and understanding

D．memorizing and listening小题2:Someone hears and writes English very well, but he speaks it very badly. This is because ______.

A．he doesn't understand the language when he hears it spoken

B．he doesn't have a good memory

C．he always remember lists of words and their meanings

D．he often hesitates to practise speaking it小题3:One can never learn a foreign language well only by________.

A．much practice

B．studying the dictionary

C．learning through use

D．using the language小题4:Which of the following is the most important in learning a foreign language?

A．A good memory.

B．Speaking.

C．Practice.

D．Writing.小题5:"Learn through use" means________.

A．we use a language in order to learn it

B．we learn a foreign language in order to use it

C．we can learn a language well while we are using it

D．both B and C

下面是某求助者MMPI-2的测验结果：

如果16PF中的恃强性的标准分为9分，可以解释为（）。

A.固执、独立、积极

B.轻松兴奋、随遇而安

C.精明能干、世故

D.谦虚、顺从、通融

采用强夯法加固处理软土地基时，相邻两遍夯击的时间间隔主要取决于( )。

A．土中超静孔隙水压力的消散时间

B．土中有效应力的消散时间

C．夯击设备的起落时间

D．有效应力的增长时间

下列反应中，既属于氧化反应，又属于化合反应的是（　　）

A．铝+氧气

B．碱式碳酸铜

C．乙炔+氧气

D．氯酸钾