CaTiO3从高温冷却过程中晶胞会发生畸变有（）种可能的方式。
A.2
B.3
C.4
D.5
参考答案：B
油压减振器储油缸上部漏油时会使拉伸阻力（）。
A.减小并发生由拉转压时的行程突变
B.减小
C.增大并发生由拉转压时的行程突变
D.增大
As its name __________, the Volunteer Farm relies on volunteers to weed, plant and harvest.
A．suggests
B．insists
C．predicts
D．possesses
