下列不是治理黄土高原水土流失有效措施的是[ ]
A、植树种草
B、开荒种地
C、修筑梯田
D、修挡土坝
答案：B
— What did you do last night?
— I did my homework and _____________ story-books. [ ]
A. reads
B. read
C. will read
D. am reading
患者胃痛，脘腹胀满，嗳腐吞酸，吐不消化食物，舌苔厚腻，脉滑。治疗应首选
A．保和丸
B．枳实导滞丸
C．调胃承气汤
D．小承气汤
E．越鞠丸
