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【判断题】
循环气中的惰性气量越低越有利于甲醇合成反应A.
正确
B.
错误
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举一反三
【单选题】含Nｉ、Cｒ等合金元素的淬火钢在回火过程中可能产生回火脆性现象，其特点是( )。
A.
第一类回火脆性有可逆性
B.
第二类回火脆性无可逆性
C.
第二类回火脆性可通过重新加热到原来的回火温度，保温后快冷来消除
D.
第二类回火脆性可通过重新加热到原来的回火温度，保温后慢冷来消除。
【单选题】Which of the following is NOT the definition of a task in Task-based Language Teaching?
A.
A piece of classroom work in which learners' attention is principally focused on both meaning and form.
B.
An activity where the target language is used by the learner for a communicative purpose.
C.
A range of workplans which have the overall purpose of facilitating language learning.
D.
An activity which requires learners to arrive at an outcome.
【单选题】Which of the following statements about task-based language teaching is NOT true?
A.
Students should be given tasks to preform or problems to solve in the classroom.
B.
Students are task-driven.
C.
Task-based language teaching is student-centered.
D.
Task-based language teaching is teacher-centered.
【单选题】Which of the following is NOT the defination of a task in Task-based Language Teaching?
A.
A piece of classroom work in which learners' attention is principally focused on both meaning and form.
B.
An activity where the target language is used by the learner for a communicative purpose.
C.
A range of workplans which have the overall purpose of facilitating language learning.
D.
An activity which acquires learners to arrive at an outcome.
【多选题】下列属于跨市套利的是()。
A.
卖出甲期货交易所7月小麦期货合约同时买入乙期货交易所7月小麦期货合约
B.
买入甲期货交易所9月菜粕期货合约同时卖出乙期货交易所9月菜粕期货合约
C.
卖出甲期货交易所7月原油期货合约,同时买入甲期货交易所7月豆油期货合约
D.
买入甲期货交易所5月白银期货合约同时买入甲期货交易所7月白银期货合约
【单选题】含Ni、Cr等合金元素的淬火钢在回火过程中可能产生回火脆性现象，其特点是（）。
A.
第一类回火脆性有可逆性
B.
第二类回火脆性无可逆性
C.
第二类回火脆性可通过重新加热到原来的回火温度，保温后快冷来消除
D.
第二类回火脆性可通过重新加热到原来的回火温度，保温后慢冷来消除
【判断题】Task-based Language Teaching is totally different from Communicative Language Teaching.
A.
正确
B.
错误
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