夏比缺口冲击试样的长度为：（）。
A.55mm
B.60mm
C.65mm
D.45mm
参考答案：A
All the foreigners coming to this country have to move in _______ or they will be sent back to their own countries. [ ]
A. naturally
B. normally
C. instantly
D. legally
强腐蚀
