还是156

拜托问下大家，156的17（marital status), 29(have you ever been in the U.S.), 30 (have you ever been issued a U.S. visa), 31(have you ever been refused a U.S. visa), 32(do you intend to work in the U.S.)项如果选no, 底下的横杠上还用写n/a吗，还是空着就行了

谢谢

空着

of course