只对肠外阿米巴病有效
A．甲硝唑B．依米丁C．替硝唑D．二氯尼特E．氯喹
参考答案：E
Dr Yuan makes______ possible______ one-third more of the crop in the same fields.
A．it; produce
B．it; producing
C．it; to produce
D．it; produced
简述政府价格行为的范围。
