黄斑中心凹处的细胞组成是______
A.多数视锥细胞和少量视杆细胞 B.只有视锥细胞C.多数视杆细胞和少量视锥细胞 D.只有视杆细胞E.等量的视锥细胞和视杆细胞
参考答案:B
Nowadays, more and more young people _____becoming a super girl or a super boy.
A.agree on
B.dream of
C.wait for
D.get along with
能拮抗知母降血糖作用的药物是( )
A.石膏B.黄连C.常山D.人参E.附子