【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】若int a[3][2] = {{123,345},{23,56},{34,56}},则a[2][1] = ( )。
【单选题】What happened after the Wright brothers’success?
A.
People carried out a systematic study on pigeons.
B.
People studied more animals and plants to develop the airplane.
C.
People could fly their airplane for fun.
D.
People kept their airplane at a French gallery.
【单选题】What happened after the WrightBrothers’success?
A.
People Carried out a systematic study on pigeons.
B.
People Could fly their airplane for fun.
C.
People kept their airplane at a French gallery.
D.
People studied more animals and plants todevelop the airplane.
【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?