通常所说的血型是指()
A.红细胞膜上的受体类型
B.红细胞表面特异凝集原的类型
C.红细胞表面特异凝集素的类型
D.血浆中特异凝集原的类型
E.血浆中特异凝集素的类型
参考答案:B
He ___ go to work by bus, but now he ___ riding a bicycle to work.
A.used to; used to
B.used to; is used to
C.is used to; used to
D.is used to; is used to
下列口服降糖药中,不属于促胰岛素分泌剂的是()
A.苯乙双胍
B.甲苯磺丁脲
C.氯磺丙脲
D.格列吡嗪
E.瑞格列奈