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【判断题】
过深、过浅的教学内容,呆板不变的教学方法,单调平淡的教学语言,都容易使学前儿童注意转移。 @font-face { font-family: "Times New Roman"; }@font-face { font-family: "宋体"; }p.MsoNormal { margin: 0pt 0pt 0.0001pt; font-family: "Times New Roman"; font-size: 12pt; }span.msoIns { text-decoration: underline; color: blue; }span.msoDel { text-decoration: line-through; color: red; }div.Section0 { }
A.
正确
B.
错误
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【单选题】马氏体硬度主要取决于马氏体中的( )
A.
含碳量
B.
合金
C.
晶格
【单选题】The old man began to learn to drive a car at the age of _____. [     ]
A.
sixty
B.
the sixtieth
C.
sixty years old
D.
sixties
【判断题】钢在淬火后所获得马氏体组织的硬度主要取决于 马氏体中含碳量 。
A.
正确
B.
错误
【简答题】简述BIOS的基本作用。
【判断题】马氏体硬度主要取决于马氏体中含碳量。
A.
正确
B.
错误
【简答题】简述 BIOS 的作用。
【单选题】马氏体的硬度主要取决于
A.
淬火加热温度
B.
淬火冷却速度
C.
马氏体中含碳量
【单选题】听力原文: More than sixty percent of all homes in the United States have at least one thing in common: the people living in them keep one or more small animals as pets. These pet owners spend about ten bi...
A.
They keep one or more small animals at home as pets.
B.
They kill animals from time to time.
C.
They let animals run or fly away now and then.
D.
They exchange their animals year in and year out.
【判断题】At least sixty children died from the products and almost 300,000 others became sick.
A.
正确
B.
错误
【单选题】at least
A.
至少
B.
尤其
C.
可能
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