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【判断题】
在铁碳合金平衡结晶过程中,只有成分为4.3%的铁碳合金才能发生共晶反应。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】Not until____________the exam _________ the importance of doing homework.
A.
had he failed; he realized
B.
he had failed; did he realize
C.
he had failed; he realized
D.
had he failed; did he realize
【简答题】布置作业:习题集 1. P2 :尺寸注法练习,全部; 2. P3 :几何作图: T3 , 4 , 5 ; 3. P4 :绘图练习:按题目要求,规范地完成几何图形 1 或 2 绘制(学生学号为单数的做几何图形 1 ,双数的做几何图形 2 的练习)
【简答题】(fortunate) ______ , he failed to pass the examination.
【单选题】—Do you know the reason why he failed ? —No, he’s a hard-working man___________, he failed finally.
A.
Somehow
B.
Anyhow
C.
Anyway
D.
Somewhat
【简答题】He is (confidence) ______ even though he has failed several times.
【单选题】—_____? —She is tall with long straight hair. [ ]
A.
What does your mother like
B.
What does your mother do
C.
What does your mother look like
D.
What does your mother like doing
【单选题】He ________ the world record.
A.
failed to break
B.
failed to breaking
C.
failed breaking
D.
failed broken
【简答题】()作为一种绝对量指标,表示项目投资在某种折现率时的盈利能力。
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