1Au约为（）。

[单选题]Au(T+N1)和Au(T+N2)的保证金比例为（）。A.9%B.6%C.10%D.7%

[判断题]标准黄金有4种成色：au99.99，au99.95，au99.9，au99.5。（）A.对B.错

[判断题] STM-1的复用映射结构：STM-1----AUG----AU4----VC4---TUG3---TU2---TU12---VC12----C12（2M）。（）A . 正确B . 错误

[单选题]AU(T+N1)合约的延期费支付日为（）。A.2018/12/310:00:00B.2018/12/150:00:00C.2018/6/300:00:

[单选题]AU(T+N1)合约的延期费支付日为（）。A.2018/12/310:00:00B.2018/12/150:00:00C.2018/6/300:00:

[单选题]AU(T+N1)合约的延期费支付日为（）。A.2018/6/300:00:00B.2018/6/150:00:00C.2018/12/150:00:0

[单选题]AU指针值不在制定范围时将会上报AU-LOP告警，AU指针值的正常范围为：（）A .0-781B .0-782C .0-783D .0-784

[单选题]金（Au）是（）。A .体心立方晶格B .面心立方晶格C .密排六方方晶格

[单选题]Which of the following is true of the author?A．He got no access to success.B．He wrote back to his father at 12.C．He was surk his parents loved him.D．He whce asked his father about the letter.

[名词解释] 天文单位（AU）