[单项选择]His business prospered and he became a person of means. Yet, despite his great riches, he gave no arms to the needy and no thanks to his benefactors whose savings ______ to his welfare. A. had contributed. B. contributed C. were contributed D. did contribute
第17题: [多项选择]混凝土拌和物的和易性包括流动性、黏聚性和保水性三方面的涵义,影响混凝土和易性的主要因素有( )。 A. 养护的温度和湿度 B. 水灰比 C. 砂率 D. 水泥浆的数量 E. 水泥浆的稠度 参考答案:C,D,E 答案解析:[解析] 混凝土拌和物的和易性包括流动性、黏聚性和保水性三方面的涵义,影响混凝土和易性的主要因素有:①水泥浆的数量;②水泥浆的稠度;③砂率,水灰比和水泥的强度等级、养护的温度和湿度、龄期是影响混凝土强
第36题: [单项选择]中度新生儿缺氧缺血性脑病的临床表现正确的是() A. 出生24小时内症状最明显 B. 激惹与淡漠交替 C. 肌张力增加 D. 瞳孔扩大 E. 出现惊厥,肌阵挛 参考答案:E 答案解析:中度新生儿缺氧缺血性脑病的临床表现以早期抑制为主,肌张力、反射减弱,瞳孔缩小,并通常有惊厥或肌阵挛。