【单选题】___, she ran out of the room.
A.
a. Having tears in her eyes and turned suddenly
B.
b. Turning suddenly, with tears in her eyes
C.
c. With a sudden turn, and tears were in her eyes
D.
d.With tears were in her eyes and turning suddenly
【单选题】当我们谈及线应变时,必须明确( )的线应变。
【判断题】( )轴向拉伸或压缩杆的轴向线应变和横向线应变符号一定是相反的。
【单选题】She ran out of the classroom without ______ goodbye to me. [ ]
【简答题】什么是应变?静止在深水中的铁块中的应变是线应变、体应变,还是切应变?边长为a的正方形物块,在切应力的作用下,受力面的边长变为b,怎样表示该物块的切应变?
【单选题】下面关于线应变,那个表述是正确的。
A.
线应变是沿着杆长度方向,单位长度的尺寸该变量。