双滚筒采煤机的截割方式分有()和()。
参考答案:双向截割、单向截割
The results of the medical checkup(健康诊断) suggested that my father _____ in poor health, so the doctor suggested that he _____ smoking and take more exercise.
A.was; gave up
B.be; should give up
C.should be; gave up
D.was; give up
某患者因有机磷中毒住院治疗,在应用阿托品治疗时,下列哪项指标不是阿托品治疗的有效指标
A.口干、皮肤干燥B.颜面潮红C.心率加快D.瞳孔较前缩小E.肺部音减少或消失