脘腹胀闷疼痛，攻窜不定，痛引少腹，脉弦，治疗当选（）。
A．大建中汤
B．小建中汤
C．柴胡疏肝散
D．少腹逐瘀汤
参考答案：C
Three quarters of the forest ________ burnt to ashes, and the rest _______ cut down for construction. [ ]
A. was, have been
B. was, has been
C. have been, is
D. has been, are
对油罐进行清洗作业时的作业程序怎样？
