砌筑砂浆可视为无粗骨料的混凝土，无论其底面是否吸水，影响其强度的主要因素应与混凝土的基本相同，即水泥强度和水灰比。
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What did D’Agostino do during the race?
A. She encouraged Hamblin to finish the race.
B. She brought Hamblin down to the ground.
C. She walked to the end with Hamblin.
D. She quit due to a serious knee injury.
What has been announced?
A. D’Agostino had a knee operation.
Both athletes will take part in the finals.
C. Both athletes will run the heat again.
D. Hamblin was to blame for the accident.
下列哪种情况适合采用社交距离：
A. 护士为患者测体温
B. 护士为患者测血压
C. 护士交接班
D. 护士做健康教育讲座
E. 护士之间交谈
正确的非语言沟通技巧是：
A. 谈话时直视对方的眼睛
B. 边写病历边和患者交流
C. 交流时，使患者处于仰视位
D. 交谈时，身体稍向患者倾斜
E. 双方的距离越近越好
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