草坪剪草机的自锐系统运用的是（）原理。 ["复制原理","分离原理","抽取原理","抛弃或者再生原理"]
财政收入部门构成，在于说明国民经济各部门对财政收入的贡献率及贡献程度。目前，在部门构成中（）占较大比例。 ["A.农业","B.工业","C.建筑","D.商业"]
No oil or mixture containing oil（）into singapore waters from any vessel. ["shall noe be discharged","shall be discharged","shall be filled","shall noe be filled"]
Nylon line can be dangerous because it（）. ["breaks down when wet","kinks be discharged","is not elastic","stretche"]
分析中间商市场和购买行为。
李××，25岁，G1P039周孕，因下腹疼痛和见红，由丈夫陪伴来院。一般查体无特殊。产科检查：有规律宫缩，宫口开大2厘米，头先露，高位“-1”，胎心音145次/分。此产妇是否临产？此时属于第几产程？
