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【单选题】
What can be inferred about the professor's opinion?
A.
He is strongly in favor of the impact hypothesis.
B.
He does not believe that mass extinctions happened.
C.
He thinks that mass extinctions were important to evolution.
D.
He views mass extinction as a preventable occurrence.
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A.
it
B.
that
C.
what
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A.
1
B.
1
C.
1
D.
1
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【判断题】鲁文化中具有“民本”精神。
A.
正确
B.
错误
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【多选题】机油压力过低会造成
A.
发动机润滑不足
B.
加剧发动机零部件的磨损
C.
影响发动机的使用寿命
D.
油封油管破裂
【单选题】根据点阵点在空间的分布按正当晶胞形状的规定和带心形式进行分类,共有()种点阵型式。
A.
6
B.
7
C.
14
D.
32
【单选题】We were all excited at the news______ our annual sales had more than doubled.
A.
which
B.
that
C.
it
D.
what
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