I. Multiple choice (1-70: 1%*70=70%)1. The audience ____ listening to
a Beethoven symphony.
A: is
B: are
C: being
D: been
a Beethoven symphony.
A: is
B: are
C: being
D: been
举一反三
- 图示应力圆，其主应力及用第三强度理论求得相当应力ζr3（），应力单位均为MPa。 A: ζ1=70，ζ2=70，ζ3=0，ζr3=35 B: ζ1=0，ζ2=0，ζ3=-70，ζr3=70 C: ζ1=0，ζ2=0，ζ3=-70，ζr3=-70 D: ζ1=-70，ζ2=-70，ζ3=0，ζr3=70
- 李某5月出版教材稿酬所得应预扣预缴个人所得税额的下列的算式中，正确的是()。 [br][/br] D. A: 10 000×(1-20%)×（1-70%）×20%=480(元) B: （10 000-800)×70%×20%=1 288(元) C: 10 000×(1-20%)×20%=1 600(元) D: 10 000×(1-20%)×70%×20%=1 120(元)
- Part I Multiple Choice（每小题 1 分，共 30 分）（1-30题）1. This is _____ apple. A: a B: an C: the D: /
- Which sentence has the most formal style?? The Ninth Symphony is Beethoven's crowning masterpiece.|The Ninth Symphony is Beethoven's best work.|We all like Beethoven's Ninth Symphony.|Beethoven's Ninth Symphony is one of the favorites among many people.
- 羊的人工辅助交配中,公母比例为（） A: 1:20～30 B: 1:30～40 C: 1:60～70 D: 1:70～90