北美自由贸易区的英文缩写为()。
A.NARA
B.NABA
C.NBCA
D.NNCA
参考答案:A
下列与营气和卫气的生成关系最密切的是().
A.心
B.肺
C.脾
D.肝
E.肾
Several shoals()reported to exist in the area south-west of the Brothers.
A.have
B.have been
C.has
D.has been