种皮的附属结构包括（）等。
A.种孔
B.种脐
C.种脊
D.种皮毛
参考答案：A, B, C, D
— Your daughter has two children, doesn't she?
— That's right. She ____ in 1972. [ ]
A. did marriage
B. was married
C. married with John
D. got married
商业银行的信贷产品包括（）等。
A.保函
B.贷款
C.担保
D.承兑
E.承诺
