国家标准规定,六大常用水泥的初凝时间均不得短于45min,硅酸盐水泥的终凝时间不得长于( )h。
A.3.0
B.4.5
C.5.5
D.6.5
参考答案:D
根据汉语提示,用适当的单词填空。
1. Her father works in the ________ (医院). He is a doctor.
2. ________ (美国人) eat Turkey with their families on Thanksgiving.
3. Yesterday they ________ (参观) the Summer Palace.
4. My grandfather likes ________ (京剧) very much but I don't like it.
5. Look at the sun! You had better wear your ________ (太阳镜).
会计从业资格的取得实行考试制度。( )