海南四大名菜中是贡品的是()
A.加积鸭
B.文昌鸡
C.东山羊
参考答案:C
The number of foreign students attending Chinese universities ______ rising steadily since 1990.
A.have been
B.are
C.has been
D.is
下列不属于国防要素的是()
A.政治要素
B.经济要素
C.文化要素
D.历史要素