属于国家秘密的统计资料分为绝密、机密、秘密三级。
参考答案：对
下到材料中，属于有机合成材料的是
A．蚕丝
B．棉花
C．涤纶
D．羊毛
We have come on board to check with you on the main ltems of repairs as stated in the（）.
A.order list
B.repair list
C.srore list
D.spare parts list
