【简答题】2Listen and number.(听音,标号。) ( ) ( ) ( ) ( ) ( )
【简答题】有以下程序,程序运行时输入:1234,执行后输出的结果是_________________。 #include void main( ) { char ch1,ch2; int n1,n2; ch1=getchar(); ch2=getchar(); n1=ch1-’0’; n2=n1*10+(ch2-’0’); printf("n1=%d,n2=%d.\n",n1,n2); }
【简答题】Labat反应的试剂组成是什么?检识什么功能图?反应机制是什么?Labat反应和Ecgrine反应的区别是什么?
【简答题】Directions: In this section, you will hear six conversations between two speakers. For each conversation, there are several questions and each question is followed by three choices marked A, B and C. ...
【单选题】What is mainly discussed in Paragraph 2 ?
C.
Benefits of listening.