Alexandra: Excuse me, officer. Can you tell me how to get to London Street?
Policeman: Sure. You should take No. 1 Train to Van Cortland Park.
Aiexandra: Thank you.
Policeman: Anytime._________.
A. Congratulations
B. Pleasant journey
C. God bless you
D. Good luck
第1题:
49.—What about some drinks?
—__________.
A. Help, yourself
B. Good idea
C. You're welcome
D. Me,too
第2题:
Me,you是两个初始集合,则下列关于派生集合定义方式正确的是
A.link/me,you/:a;
B.link(me,you):a;
C.link/me you/a;
D.link(me,you)/a;
第3题:
3、一跨度为l的简支梁,若仅承受一个集中力偶Me。当Me在梁上移动时,梁内产生的最大剪力FSmax和最大弯矩Mmax分别为 。
A.FSmax = 0,Mmax = Me;
B.FSmax = 0,Mmax = Me/2;
C.FSmax = Me/l,Mmax = Me;
D.FSmax ≤ Me/l,Mmax = Me/2;
第4题:
第5题:
一跨度为l的简支梁,若仅承受一个集中力偶Me。当Me在梁上移动时,梁内产生的最大剪力FSmax和最大弯矩Mmax分别为 。
A.FSmax = 0,Mmax = Me;
B.FSmax = 0,Mmax = Me/2;
C.FSmax = Me/l,Mmax = Me;
D.FSmax ≤ Me/l,Mmax = Me/2;
第6题:
me是一个包含3个成员属性为a的集合,you是一个包含2个成员属性为b的集合,则要定义一个2行3列的矩阵所对应的派生集合方法中正确的是
A.ps(me,you):c;
B.ps(you,me):c;
C.ps(a,b):c;
D.ps(b,a):c;