长期国债期货合约到期时，卖方可用以交割的并不仅限于标准化的债券，只要是剩余期限不少于15年的美国长期公债券都可作为可交割债券。 ( )
参考答案：对
— Will you please help me _____ the exercise books to the students?
— Sorry I have been in a race and my strength has completely _____.[ ]
A. give out; given out
B. give off; given up
C. give out; given in
D. give up; given up
就卖方承担的费用而言，下列各项哪一项是正确的( )。
A．FOB＞CFR＞CIF
B．FOB＞CIF＞CFR
C．CIF＞CFR＞FOB
D．CIF＞FOB＞CFR
