【单选题】若 int a[3][2]={{123,345,334},{1,2},{3,4}}; 则 a[2][1]= ( )。
【单选题】What happened after Lincoln's assassination?
B.
The Thirteenth Amendment became law
C.
Andrew Johnson was killed
D.
More states secreded from the Union
【单选题】对 一 般硬度的钢材进行高速切削应选择 ( ) 。
【单选题】乒乓球直握拍的特点为 。
A.
手较快,反手攻球有力,对手容易判断,两面摆速快。
B.
手较快,攻球快速有力,对手不易判断,两面摆速快。
C.
手较快,攻球快速有力,对手易判断,两面摆速快。
【单选题】若int a[3][2] = {{123,345},{23,56},{34,56}},则a[2][1] = ( )。
【单选题】对一般硬度的钢材进行高速切削应选择( )。
【简答题】What happened after the message of seeing a Vermivora chrysoptera was put on the network?