機械が（）。
A.働きます
B.動きます
C.歩きます
D.行きます
参考答案：B
35. The national Education Department says school safety has set off alarm bells with frequent serious accidents_________students got injured or even killed.
A．that
B．in which
C．by which
D．When\
马氏体的转变没有碳原子的扩散，只是晶格的改组，没有形核和长大的过程。（）
