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【单选题】
20CrMnTi钢中Ti元素的主要作用是什么A.
细化晶粒
B.
提高淬透性
C.
强化体
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反馈参考答案：
举一反三
【单选题】[7-45]Weight added or subtracted at the center of floatation will cause change in ___漂心位置重量增加或减少将造成平均吃水的改变。
A.
trim吃水差
B.
list横倾
C.
mean draft平均吃水
D.
TPI 吨/英寸
【判断题】In the U.S., assignments are felt to be given added weight by the passage of time.
A.
正确
B.
错误
【简答题】（3x﹣2y﹣5）（3x+2y﹣5）﹣2x（6x+y）﹣（3x﹣y）（﹣y﹣x）
【简答题】Given x,y,z∈R+ ,and 3x=4y=6z .Then write 3x, 4y, and 6z in order from least to greatest as ___.
【单选题】医学伦理学的研究内容不包括
A.
医学伦理学的基本理论
B.
医学伦理学的基本准则、规范
C.
伦理学产生、发展及其规律
D.
医学道德教育、评价和修养
E.
医学道德中特殊问题
【单选题】[7-33]Weight added or subtracted at the center of floatation will cause change in ___
A.
trim
B.
list
C.
mean draft
D.
TPI /
【单选题】______ , he went to bed.
A.
A great weight taking off his mind
B.
With a great weight taking off his mind
C.
A great weight being taken off his mind
D.
With a great weight being taken off his mind
【单选题】Weight added or subtracted at the center of floatation will cause change in ___
A.
trim
B.
list
C.
mean draft
D.
TPI
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【简答题】Given x,y,z∈R+ ,and 3x=4y=6z .Then write 3x, 4y, and 6z in order from least to greatest as ___.
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