A LEVEL的考试是知识性很强,相比国内的高考,其需要理解记忆的东西更多。在考试的时候,Alevel的考题偶尔会比较长的,有很多干扰性的内容或者是很多知识性的内容,尤其对于英语差一些的同学,读起来就很困难,而且还要在一个小时内做完40个multiple choice就有些难上加难了……实际上,我们在考试的时候,题目中的很多内容,我们只要部分读就可以做完做对题!
The acarid mite releases Iardolure to attract other mites to a host. This chemical can be destroyed by hydrolysis with acid.
CH3CH2CH2[CH(CH3)CH2]3CH(CH3)O CHO
A simplified formula for lardolure may be written as follows.