问题
单项选择题
（2012）混凝土的强度受到其材料组成、养护条件和试验方法的影响，其中试验方法的影响主要体现在：（）
A.试验设备的选择
B.试验地点的选择
C.试件尺寸的选择
D.温湿环境的选择
答案
参考答案：C
搜题请搜索小程序“爱下问搜题”
（2012）混凝土的强度受到其材料组成、养护条件和试验方法的影响，其中试验方法的影响主要体现在：（）
A.试验设备的选择
B.试验地点的选择
C.试件尺寸的选择
D.温湿环境的选择
参考答案：C
Nowadays, more and more villagers have left to make a living in big cities. As a result, their children have become leftover children and they need more care. The survey below is from villages in Yongzhou, Hunan Province. Three hundred children were chosen to answer the questions.
Of all the five needs, the leftover children need _______ most.
Which of the following is TRUE according to the passage?
How many children think their happiest place is their school?
We can learn from the survey that _______.
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