He had just lost his job when, at the precise moment, his girlfriend broke up with him. She ____ salt into his wound. A. rubbed B. had rubbed C. would rub
下列各句中,没有语病的一项是 (2分)A.学生不但喜欢这种游戏,而且青年教师也喜欢。B.文艺作品的好坏,不在于它用了一大堆华丽的词,而在于
下列是有关酶的应用以及微生物的培养与应用等问题,请分析回答。 工业生产果汁时,常常利用果胶酶破除果肉细胞壁以提高出果汁率,为研究温度
--- Good news! Most of the miners in Wang Jialing were saved to ______.--- Thanks ____ the government and great soldiers!A.safe; forB.safety; toC.safely; forD.safely; to
They said they would try their best _________ English well . A. studying B. to study C. study D. for studying
图3-10甲图中的两个灯泡是______ (选填“串联”或“并联”),用乙图中的水流可以类比该电路中的______ (选填“电压”或“电流”). 图
已知正实数,满足:. (Ⅰ)求的最小值; (Ⅱ)设函数,对于(Ⅰ)中求得的,是否存在实数,使得成立,若存在,求出的取值范围,若不存在,说
居民的恩格尔系数在2000年、2005年和2006年分别为42.5%、40.6%、38.8%,这一变化趋势表明,居民 A. 食品支出占家庭总支出的比重增加 B. 家庭食