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【单选题】
《公路工程集料试验规程》(JTG E42-2005)规定:选取规定数量的集料,用饱和硫酸钠溶液(或硫酸镁)进行干湿循坏试验,经( )次循环后,测定试样质量损失,用质量损失率来评价其坚固性。A.
3
B.
4
C.
5
D.
6
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举一反三
【判断题】We can use two ways to circulate oil through An engine:pressure and splash.
A.
正确
B.
错误
【简答题】经过浸锡的导线端头，其根部与离搪锡处的距离应留有A. 1mm以上
【简答题】The function of art is often to 1)________ the senses, or to communicate emotions and ideas. The ways in which we use art depend on the type of art in question. We can 2)__________ the way that art fu...
【单选题】通常女人的声音听起来比男人的声音尖，其原因是（ ）。
A.
山地植树造林—涵养水源，保持水土
B.
大气污染较重的工矿区—美化环境，涵养水源
C.
城市绿化—美化环境，减少噪声
D.
干旱、半干旱地区造林—防风固沙，保护农田、村庄、道路
【判断题】We can use two ways to circulate oil through an engine: pressure and splash
A.
正确
B.
错误
【单选题】Which sentence explains one of the speaker's main points?
A.
"This means that you learn details first, and then you piece them together to understand the main idea."
B.
"We're going to talk more about learning styles later, and about how we can use our individual learning styles to study effectively."
C.
"And usually, one hemisphere is stronger than the other—at least in humans."
D.
"The brain is divided into two hemispheres that process information in different ways."
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