制样时缩分可以在（）阶段进行，缩分后试样的最小质量应满足国标要求。
A.任意
B.破碎后
C.13mm以下
参考答案：A
承运人和托运人、收货人在货物运输过程中都应遵守（）的规定。
_________is known to us all is that the old writer, for __________ life was hard in the past, still works very hard in his eighties.
A．What; whom
B．As; whom
C．It; whose
D．What; whose
