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【单选题】
数控机床中的标准坐标系采用右手直角笛卡尔坐标系 ,大拇指指向 ( ) 正方向。A.
X
B.
Y
C.
Z
D.
A
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【单选题】In Bhutan, about 200 people ______.
A.
have been killed in floods
B.
have been killed in landslides
C.
have drowned in the river
D.
have been killed by diseases caused by floods
【单选题】Scholar and students have always been great travelers. The official case for 'academic mobility, is now often stated in impressive terms as a fundamental necessity for economic and social progress in ...
A.
He gains recognition for his achievements.
B.
He attracts large numbers of students.
C.
He risks his ideas being student.
D.
He is considered slightly mad.
【单选题】What have adults been accustomed to doing concerning young people?
A.
They have been accustomed to carefully considering young people’s views.
B.
They have been accustomed to listening to young people’s voice.
C.
They have been accustomed to taking decisions for young people.
D.
They have been accustomed to promoting young people’s best interest.
【简答题】Scientists have been working hard to warn people________
【单选题】Scholar and students have always been great travelers. The official case for 'academic mobility' is now often stated in impressive terms as a fundamental necessity for economic and social progress in ...
A.
He gains recognition for his achievements.
B.
He attracts large numbers of students.
C.
He risks his ideas being student.
D.
He is considered slightly mad.
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