现有: class Birds { public static void main (String [] args) { try { throw new Exception () ; } catch (Exception e) { try { throw new Exception () ; } catch (Exception e2) { System.out.print ("inner "); } System. out.print ( "middle" ) ; } System.out.print ("outer") ; } } 结果是() [" inner outer"," middle outer"," inner middle outer",".编译失败"]
按照蒲福风力等级表,3m/s的切入风速属于几级风() ["0级静风","1级轻风","2级轻风","3级微风"]
词义的性质包括概括性、()。
以下所列“新生儿期禁用的抗生素”中,不正确的是() ["磺胺类","青霉素类","四环素类","氨基糖苷类","第一、二代喹诺酮类"]
联络索和胞间联丝在结构上有何不同?
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