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【单选题】
最后贯入度是指()A.
最后三阵，每阵10击的平均入土深度
B.
最后一阵，每阵10击的平均入土深度
C.
最后10锤，平均每锤的入土深度
D.
每入土10cm所用的贯击数
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反馈参考答案：
举一反三
【简答题】命名或写出结构式
【简答题】V带传动机构装配时，要求两轮的中间平面重合，因而要求其倾斜角不超过( )。
【简答题】命名或写出结构式
【简答题】命名或写出结构式
【单选题】My parents moved out of their old home sometime last year after they had celebrated their 50th year there.
A.
anniversary
B.
years old
C.
age
D.
wedding
【单选题】Housemaid Wanted I am in urgent need for a housemaid to look after my house and my 80-year old father. We want her to do cleaning and washing, and help do cooking. My family has six persons, we live i...
A.
To cook for his family
B.
To do some clean and washing work
C.
To teach his children
D.
To take care of his old father and look after the house
【简答题】命名或写出结构式
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