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【单选题】
It is _____ he often fails in exams____ makes his parents worried about him.
A.
because;that
B.
that;that
C.
不填;that
D.
what;that
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参考答案:
举一反三
【判断题】在用有限差分法求解弦振动方程时,必须考虑差分格式的稳定性。
A.
正确
B.
错误
【判断题】敦煌乐舞的生成和发展主要依靠西方不同民族的文化。
A.
正确
B.
错误
【多选题】弦振动的方式有:
A.
横振动
B.
纵振动
C.
扭转振动
D.
倍频振动
【单选题】Who ________ a theory about black holes?
A.
put forward
B.
put down
C.
put away
D.
put off
【单选题】The word 'orator' originally meant speaker but now it signifies the person who makes speech. This is an example of ______.
A.
narrowing of meaning
B.
widening of meaning
C.
meaning shift
D.
loss of meaning
【多选题】连铸机上的振动方式有哪些?
A.
同步振动
B.
梯速振动
C.
正弦振动
D.
非正弦振动
【多选题】结晶器的振动方式有 ( )。
A.
同步式
B.
负滑脱式
C.
正弦振动
D.
余弦振动
【简答题】结晶器的振动方式有()、()、()、非正弦振动。
【简答题】Who put the fire out? ___________________.
【单选题】The word 'orator' originally meant speaker but now it signifies the person who makes speech. This is an example of ______.
A.
narrowing of meaning
B.
widening of meaning
C.
meaning shift
D.
lass of meaning
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