幼年型糖尿病应选用何药物治疗（ ）
A．格列本脲
B．二甲双胍
C．胰岛素
D．甲苯磺丁脲
E．苯乙双胍
参考答案：C
—What’s that on the desk?
— It’s _______ book.
A．an
B．a
C．the
D．\
—Do you like English ______ science, Daming?
—I like science. [ ]
A. and
B. or
C. for
D. of
